Re: [Chevelle-List] BBC cams

[Z16CHEVELLEGUY]

Craig:
every one of my buddies with the cowl induction has had problems with the aircleaner and seal. I will ask around and see if any of them came up with a solution.
 Larry (z)

Fwd: [Chevelle-List] BBC cam grinds

[Z16CHEVELLEGUY]

Craig:
here is the info
Larry (z)
--- Begin Message ---
 

--- Begin Message ---

Craig:
Here is the information on the LS-6 motor. This information came out of the Chevrolet Power Catalog 6 edition 1988.

Cam Shaft   Cam Lobe    Opening   Closing Crankshaft  Crankshaft
Part No.  & Running    Point    Point    Duration At Duration At
And Lifter Type Valve Lash  Lash Point .010 Tappet Lift

3904362 Flat   Intake .024    43 BTC    84 ABC    307    275
Mechanical Exhaust 028  84 BBC    34 ATC    298    271
---
Crankshaft    Max Lift   Lobe    Intake C/L    Overlap At   
Duration At   W/1.5 Rocker  Centerlines    From TDC    0 And .010
.050 From Ratio Tappet Lift
Base Circle
   242  .496 114    108  77 @ 0    
 242  .496 ATDC    48 @ .010   

  Remarks: Street Mechanical Lifter Used In L-78 396, L-72 427 & LS-6 454
---




--- Begin Message ---
In a message dated 10/12/2002 8:17:49 AM Pacific Daylight Time, Z16CHEVELLEGUY writes:


Subj:Re: [Chevelle-List] BBC cam grinds
Date:10/12/2002 8:17:49 AM Pacific Daylight Time
From:Z16CHEVELLEGUY
To:Z16CHEVELLEGUY



Craig:
Here is the information on the LS-6 motor. This information came out of the Chevrolet Power Catalog 6 edition 1988.

Cam Shaft   Cam Lobe    Opening   Closing Crankshaft  Crankshaft
Part No.  & Running    Point    Point    Duration At Duration At
And Lifter Type Valve Lash  Lash Point .010 Tappet Lift

3904362 Flat   Intake .024    43 BTC    84 ABC    307    275
Mechanical Exhaust 028  84 BBC    34 ATC    298    271
---
Crankshaft    Max Lift   Lobe    Intake C/L   Overlap At   Remarks
Duration At   W/1.5 Rocker  Centerlines    From TDC   0 And .010
.050 From Ratio    Tappet Lift
Base Circle

242    .496 114    108    77 @ 0 Street Mech.
242    .496 ATDC  48 @ .010    Lifter As Used
  In L-78 396,   
  L-72 427, LS-6
  454
___


--- Begin Message ---
Craig:
Here is the information on the LS-6 motor. This information came out of the Chevrolet Power Catalog 6 edition 1988.

Cam Shaft   Cam Lobe    Opening   Closing Crankshaft  Crankshaft
Part No.  & Running    Point    Point    Duration At Duration At
And Lifter Type Valve Lash  Lash Point .010 Tappet Lift
 
3904362 Flat   Intake .024    43 BTC    84 ABC    307    275
Mechanical Exhaust 028  84 BBC    34 ATC    298    271
---
Crankshaft    Max Lift   Lobe    Intake C/L   Overlap At   Remarks
Duration At   W/1.5 Rocker  Centerlines    From TDC   0 And .010
.050 From Ratio    Tappet Lift
Base Circle

242    .496 114    108    77 @ 0  Street Mech.
242    .496 ATDC  48 @ .010  Lifter As Used
    In L-78 396,   
    L-72 427, LS-6
    454
--- End Message ---
--- End Message ---
--- End Message ---
--- End Message ---

RE: [Chevelle-List] Media Blast material

[John Nasta]

Hi Spud,

As far as the thermal shock theory, I can only tell you that I've read about
it on a number of internet sites, and that was one of the claims about how
it works.

About doing it indoors, there is no reason to do it indoors and apparently
more than one reason not to. Another concern is that it is very loud and
requires ear protection.

Unfortunately I don't have any information about it other than what you can
find by searching Google for dry ice blasting as I did. I have never tried
it myself (although I have done sand and bead blasting).

John Nasta



-Original Message-

John -

I wonder about this.  With any collision, there's
necessarily thermal energy created when the kinetic energy
of the ballistic particle impacts an object.  This energy
conversion will tend to melt the dry ice and warm the
impacted surface, though I can imagine the normal blasting
detritus ricocheting off the impacted surface and that some
of the thermal energy would be absorbed by the dry ice,
since heat transfers from a hotter body to a colder body.

It might also be possible that the relatively cool
atmosphere around the impacted body, created by the melting
dry ice, might allow quicker cooling of the impacted body.
I have trouble understanding the thermodynamics of how
there is a thermal shock on impact that does what you state
below.  Please explain.

I'd also be concerned for anyone trying to do this in an
enclosed environment, like a garage, even if the door is
open.  Oxygen displacement is a serious risk here and can
lead to asphyxiation (dry ice is, afterall, frozen carbon
dioxide).  A dead-man switch on the blaster would be a
must, but lots of ventilation of the work area would also
be a minimum requirement or at least a wise precaution.  I
also wouldn't want any casual observers in the immediate
area, but I *would* want an observer to keep an eye on me,
if *I* were to do this.

What do the dry ice blasting shops that do for safety
precautions?


Spud
[EMAIL PROTECTED]

On 21 Oct 2002 at 14:32, John Nasta wrote:

> That's the nice thing about dry ice. It melts and leaves no residue. It
also
> uses thermal shock to cause dissimilar particles to contract at different
> rates and therefore separate from each other. For that reason, it does
zero
> damage to the metal. The other blast media all use abrasion.
>
> John Nasta


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RE: [Chevelle-List] Fuel gauge part 2

[Spud]

Vernon -

I guess this is too late for you, but...

Before you replace a sender, check the replacement for the 
appropriate resistance across the coil.  If it's right, 
then remove the wiring from the old unit (leave it the 
tank, for now) and connect it to the replacement.

Move the float lever arm through its range of motion with 
the key on.  Be sure to let the gas gauge settle for each 
movement of the float lever; the dash gauges are slow 
responding.

Be sure to check grounds, as others advised, if all else 
checks out and the unit still isn't cooperating.  As a 
quick check, you can take the ground on a long lead 
directly from the battery.

Spud
[EMAIL PROTECTED]

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RE: [Chevelle-List] Media Blast material

[Spud]

John -

I wonder about this.  With any collision, there's 
necessarily thermal energy created when the kinetic energy 
of the ballistic particle impacts an object.  This energy 
conversion will tend to melt the dry ice and warm the 
impacted surface, though I can imagine the normal blasting 
detritus ricocheting off the impacted surface and that some 
of the thermal energy would be absorbed by the dry ice, 
since heat transfers from a hotter body to a colder body.

It might also be possible that the relatively cool 
atmosphere around the impacted body, created by the melting 
dry ice, might allow quicker cooling of the impacted body.  
I have trouble understanding the thermodynamics of how 
there is a thermal shock on impact that does what you state 
below.  Please explain.

I'd also be concerned for anyone trying to do this in an 
enclosed environment, like a garage, even if the door is 
open.  Oxygen displacement is a serious risk here and can 
lead to asphyxiation (dry ice is, afterall, frozen carbon 
dioxide).  A dead-man switch on the blaster would be a 
must, but lots of ventilation of the work area would also 
be a minimum requirement or at least a wise precaution.  I 
also wouldn't want any casual observers in the immediate 
area, but I *would* want an observer to keep an eye on me, 
if *I* were to do this.

What do the dry ice blasting shops that do for safety 
precautions?


Spud
[EMAIL PROTECTED]

On 21 Oct 2002 at 14:32, John Nasta wrote:

> That's the nice thing about dry ice. It melts and leaves no residue. It also
> uses thermal shock to cause dissimilar particles to contract at different
> rates and therefore separate from each other. For that reason, it does zero
> damage to the metal. The other blast media all use abrasion.
> 
> John Nasta


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Re: [Chevelle-List] SBC Cam selection and now torque converters

[Herbert Lumpp]

> My friend who's helping me put the engine in says I should just try the
> stock converter first because driving around town with a higher stall is a
> pain in the ass.  He has a 67 RS/SS Camaro and used to drag race it, so
I'm
> wondering if all his experience is with radical converters (for racing).
> Are the torque converters that are "slightly higher than stock" a pain
when
> driving around town?

Actually, that's not a bad idea.  Use the stock converter to break in the
engine, then if it won't idle and/or seems sluggish you can swap converters.
Besides, different engines will have different stall speeds with the same
converter.  The engine with more torque will "stall" at a higher rpm than
the engine with less torque.  Until you get into 2800 rpm or higher stalls,
you probably won't notice it too much.

> What will be the determining factor if I need a different converter?

Drag strip testing or a chassis dyno is the best way to know if you need
more stall.  Another, less scientific approach is if the idle rpm in park
has to be set really high to keep the engine running when you put it in
drive.  If your converter is too tight, you'll know what I mean the first
time you go from park to drive.

> Is it strictly to get a better launch?

Pretty much.  A stall converter is comparable to side stepping the clutch in
a manual trans car.  The idea is to get the engine into it's torque curve
before it tries to move the car.

I had a 4500 rpm stall (I ordered a 2500) in my '70 429 Torino and it would
idle in drive without a park brake and not budge.  When I pulled away from a
stop the engine would go to about 3000 rpm and then start nudging along and
gradually get going.  If I stomped on the gas from a dead stop, the rpm
would shoot up to around 5000 and the back tires would explode into smoke.
I was 18 and it was the first car I built, it was useless for driving around
but it was probably the most fun car I've had.

I guess what I'm trying to say is if you decide to get a looser converter,
talk to the manufacturers about your combination before you spend your
money.

cYa-

Herb Lumpp
1966 El Camino
ACES 3509, MCC 528
http://users.adelphia.net/~hlump/


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Re: [Chevelle-List] SBC Cam selection

[Herbert Lumpp]

Hi Brian,

I had a Comp Cams 280 Magnum in a 350 Camaro years ago and I think it was
one of the best cams I've had.  Keep in mind the Camaro had a 4-speed and
3.73 posi, so the 280 worked like a charm.  It might be a bit rough for a
daily driver though.

I've also had the Comp Cams 270 Magnum in two different 350's over the years
and they also work great.  Not quite as radical as the 280 but at least you
can use a stock stall converter if you're running an automatic.

No matter what cam you choose, I highly recommend getting the correct valve
springs to avoid any problems down the road, it's cheap insurance and a lot
easier to install before the engine is in the car.

Go to Comp's web page and do some reading, it will probably help you decide
what size cam you should get...

http://www.compcams.com/

cYa-

Herb Lumpp
1966 El Camino
ACES 3509, MCC 528
http://users.adelphia.net/~hlump/

- Original Message -
From: "Brian Zack" <[EMAIL PROTECTED]>
To: "Chevelle List (E-mail)" <[EMAIL PROTECTED]>
Sent: Tuesday, October 22, 2002 11:28 AM
Subject: [Chevelle-List] SBC Cam selection


> What is the largest cam any of you are running in a daily driver with a
> small block 350. I have a '70  Chevelle Malibu with a  350 4-bolt main,
> cast pistons, 9:1 compression stock heads, edlebrock performer manifold
> edlebrock 600 cfm carb, 1 5/8" headers, and dual 2" exhaust. It also has
the
> stock stall converter and I think either 2:73 ot 3:07 gears ( I have to
> verify that) Right now I have a crane energizer 266H which is 266 duration
> and .440 lift. I am going to be changing to a larger cam and was wondering
> what max. size anyone might recommend. I was thinking of of the crane
> energizer w/ .467 lift or the crane energizer with .454 lift. But, I dont
> think the smaller one would give me that much of a difference. I think I
> would have to change my springs though and probably the converter. Has
> anyone used a larger cam and not upped the converter? I would assume it
> would probably hurt mileage and not have that great of low speed torque.
Any
> recommendations?
>
> Brian Zack
> '70 Chevelle Malibu


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Re: [Chevelle-List] Pics from Bristol...

[Herbert Lumpp]

You're welcome!
 

  - Original Message - 
  From: 
  [EMAIL PROTECTED] 
  To: [EMAIL PROTECTED] 
  
  Sent: Wednesday, October 23, 2002 5:18 
  PM
  Subject: Re: [Chevelle-List] Pics from 
  Bristol...
  HerbGreat F**&^% pictures, even in the 
  rain...thanks for the show !Bill CCt 

Re: [Chevelle-List] Pics from Bristol...

[Herbert Lumpp]

Dale, Ford may have started the concept, but Chevy made it cool.  
;)
 
cYa-
 
Herb
 

  - Original Message - 
  From: 
  Dale McIntosh 
  
  To: [EMAIL PROTECTED] 
  
  Sent: Wednesday, October 23, 2002 5:05 
  AM
  Subject: RE: [Chevelle-List] Pics from 
  Bristol...
  
  
   
  Super pictures 
  Herb.  The custom (bronze/brown) Buick in the 
  picture with Chuck was at the KC Goodguys show in 
  October this year…wild custom!  
  FWIW, I know the 59 Elky was the first year 
  for GM but Ford had the Ranchero in 57 that started it all.  GM always seemed to be a couple of 
  years late; the Camaro/Firebird was another example 
  of catch-up.
   
  Dale
   
  

I'm back and the Elky is no worse for 
the wear.  Below is a link to the pictures I took while at the Bristol 
Bash 2002.

 

My wife and I had a great time, made 
some new friends and saw some old friends 
too.

 

http://users.adelphia.net/~hlump/bristol2002.htm

cYa-

 

Herb Lumpp1966 El CaminoACES 
3509, MCC 528http://users.adelphia.net/~hlump/

Re: [Chevelle-List] SBC Cam selection

[WCross9844]

Rodney

Don't woory,,,be happy!!  there is no such thing as too much for the street!!!

As Tim Taylor sayes "MORE POWER" !

Bill C
Ct
70 LS6

PS if I had a few more dollrs, that new 572 Big Block would look JUST fine between the fenders of this 'ole 70 chevelle
Puts a big :) on my face!!!

Re: [Chevelle-List] SBC Cam selection and now torque converters

[Rodney.]

Thanks everyone for boosting my confidence back up :)

My thinking was that I could run a higher lift and get away with it, but
since this stuff is pretty new to me I was getting a little worried
wondering if I goofed :)  Anyways, thanks again for the explanations also
that was really informative!

Dave, you were right the specs of the cam are Duration @ .050 218I, 228 E.
Lift 525" I, 525" E.

Brad, it comes with a Performer manifold and it has 1.6 roller rockers.
I'll be using an Edelbrock Q-Jet 795 cfm and 1-3/4" Hooker Super Comps and a
2.5" Flowmaster system with 40 series mufflers.

Since you guys brought up torque converters and since I don't have any
experience with them, let me throw out a couple questions.  I realize that
optimally for performance I would want to have a torque converter with at
least a slightly higher than stock stall.  I've never driven a car that had
a performance converter in it, so I really have no idea what to expect from
it.

My friend who's helping me put the engine in says I should just try the
stock converter first because driving around town with a higher stall is a
pain in the ass.  He has a 67 RS/SS Camaro and used to drag race it, so I'm
wondering if all his experience is with radical converters (for racing).
Are the torque converters that are "slightly higher than stock" a pain when
driving around town?

What will be the determining factor if I need a different converter?  Is it
strictly to get a better launch?  What were you guys talking about before
about losing vacuum?  Are there other side effects of using the stock
converter?

Thanks!

Rodney.
71 Chevelle
El Mirage, AZ


- Original Message -
From: "Brad Waller" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 23, 2002 5:21 PM
Subject: RE: [Chevelle-List] SBC Cam selection


> > From: On Behalf Of Rodney.
> > Subject: Re: [Chevelle-List] SBC Cam selection
> >
> > You guys are scaring me... I just bought a crate engine with
> > a hydrolic roller with a .525 lift (the ZZ4 HOT cam) and
> > L-98 aluminum vette heads... It's being shipped as we speak.
> > Did I overdue it for a street car?   BTW it's 375 horse and
> > 417 ft./lb torque.
>
> As Dave said, you are safe.  Roller cams are different, plus Brian has
> stock heads, a mild torque converter, and highway gears.  He could go a
> lot more aggressive and be fine on the street by changing all of these
> (and in fact he might just do that over time!
>
> Your setup sounds perfect.  I don't have all the particulars, but a
> quick look with Dyno2000 shows a dead flat torque curve if you have a
> dual plane manifold!  I plugged in the heads and cam, estimated 9.5:1
> compression, dual plane manifold, and small tube headers and got about
> 430 lb-ft from 2000 to 4000 RPM, with a peak of 357 HP at 5000 RPM.
> Swapping to a single plane loses 30 lb-ft at 2000 rpm, but ups the HP to
> 370.
>
> But then again, I can't confirm the validity of the cam or head specs
> that I downloaded...
>
> Brad Waller ([EMAIL PROTECTED])
> '66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
> '67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes
>
> > - Original Message -
> > From: "Brian Zack" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, October 23, 2002 9:15 AM
> > Subject: RE: [Chevelle-List] SBC Cam selection
> >
> >
> > > Is a .467 lift too large for the street?  Thanks for the
> > replies. I dont
> > > want to go too big. I know if I had considered going up to
> > say .480 I
> > would
> > > probably kill my driveability and low end torque and be
> > over camming it. I
> > > guess I'll call Comp. cams and/or Crane cams and talk with
> > them to answer
> > > any more recommendations or things to beware of. Tom, Did
> > you get the cam
> > > specs on your Cutlass?
> > >
> > > Brian Zack
> > > '70 Chevelle Malibu
> > > mailto:brianz@;dpsabq.com
> > >
> > >
> > >
> > > -Original Message-
> > > From: Don [mailto:doverpeck@;cinci.rr.com]
> > > Sent: Wednesday, October 23, 2002 10:04 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: [Chevelle-List] SBC Cam selection
> > >
> > >
> > >
> > > Just be careful Brian. The number 1 mistake street engine
> > builders make is
> > > to over-cam & over-carburate.
> > > Don
> > >
> > >
> > > > I am considering doing the cam change because ever since
> > I built the
> > > engine
> > > > about a year ago, the new crane cam and lifters will
> > clatter and tap
> > every
> > > > so often and I'm not sure if this could be damaging the
> > cam lobes too or
> > > > not. I have tried re-adjusting the valves  2 or 3 times
> > and it seems to
> > go
> > > > away for a little bit then comes back. I have tried
> > different amount of
> > > > turns starting at 1/2 turn after clattering stops and am
> > now between 3/4
> > > to
> > > > 1 turn. I have also tries marvel mystery oil to see if
> > that would help a
> > > > sticking lifter. No help. Being a daily driver, I can on

RE: [Chevelle-List] Attn: Steve Lentz

[Stephen Lentz]

Kent,
No, its a LS5 454 with a LS6 cam, solid lifters, roller rockers and
Edelbrock Performer square-port heads & matching intake.  I was thinking of
saving up and putting a 502 in my 55 BelAir if it ever gets put back
together.  If the 454 ever blew, I would consider putting a 502 in it
though.
Steve

-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Kent Lewis
Sent: Wednesday, October 23, 2002 6:30 AM
To: [EMAIL PROTECTED]
Subject: [Chevelle-List] Attn: Steve Lentz


Steve,

  Any chance you have a "502" in your Chevelle ? ( [EMAIL PROTECTED])


Kent
'68 Malibu  ZZ502/502
ACES #5102


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RE: [Chevelle-List] SBC Cam selection

[Brad Waller]

> From: On Behalf Of Rodney.
> Subject: Re: [Chevelle-List] SBC Cam selection
> 
> You guys are scaring me... I just bought a crate engine with 
> a hydrolic roller with a .525 lift (the ZZ4 HOT cam) and  
> L-98 aluminum vette heads... It's being shipped as we speak.  
> Did I overdue it for a street car?   BTW it's 375 horse and
> 417 ft./lb torque.

As Dave said, you are safe.  Roller cams are different, plus Brian has
stock heads, a mild torque converter, and highway gears.  He could go a
lot more aggressive and be fine on the street by changing all of these
(and in fact he might just do that over time!

Your setup sounds perfect.  I don't have all the particulars, but a
quick look with Dyno2000 shows a dead flat torque curve if you have a
dual plane manifold!  I plugged in the heads and cam, estimated 9.5:1
compression, dual plane manifold, and small tube headers and got about
430 lb-ft from 2000 to 4000 RPM, with a peak of 357 HP at 5000 RPM.
Swapping to a single plane loses 30 lb-ft at 2000 rpm, but ups the HP to
370.

But then again, I can't confirm the validity of the cam or head specs
that I downloaded...

Brad Waller ([EMAIL PROTECTED])
'66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
'67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes

> - Original Message -
> From: "Brian Zack" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 23, 2002 9:15 AM
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> > Is a .467 lift too large for the street?  Thanks for the 
> replies. I dont
> > want to go too big. I know if I had considered going up to 
> say .480 I
> would
> > probably kill my driveability and low end torque and be 
> over camming it. I
> > guess I'll call Comp. cams and/or Crane cams and talk with 
> them to answer
> > any more recommendations or things to beware of. Tom, Did 
> you get the cam
> > specs on your Cutlass?
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> >
> > -Original Message-
> > From: Don [mailto:doverpeck@;cinci.rr.com]
> > Sent: Wednesday, October 23, 2002 10:04 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [Chevelle-List] SBC Cam selection
> >
> >
> >
> > Just be careful Brian. The number 1 mistake street engine 
> builders make is
> > to over-cam & over-carburate.
> > Don
> >
> >
> > > I am considering doing the cam change because ever since 
> I built the
> > engine
> > > about a year ago, the new crane cam and lifters will 
> clatter and tap
> every
> > > so often and I'm not sure if this could be damaging the 
> cam lobes too or
> > > not. I have tried re-adjusting the valves  2 or 3 times 
> and it seems to
> go
> > > away for a little bit then comes back. I have tried 
> different amount of
> > > turns starting at 1/2 turn after clattering stops and am 
> now between 3/4
> > to
> > > 1 turn. I have also tries marvel mystery oil to see if 
> that would help a
> > > sticking lifter. No help. Being a daily driver, I can only alow a
> weekend
> > > down time and dont want to just buy lifters and then get 
> into it and
> find
> > > out the cam is going bad too and not be able to get 
> another one right
> > away.
> > > I know eventually, a bigger stall converter (and tranny 
> cooler at the
> same
> > > time) will help my seat of the pants feel. I did a mild 
> polishing of the
> > > ports on the redone heads when I built it.  I also want 
> to eventually
> > change
> > > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You 
> know that with
> > the
> > > horsepower bug, you always want just a little more and 
> still keep it
> > > streetable. ; ). Any other comments would be appreciated.
> > > Thanks
> > >
> > > Brian Zack
> > > '70 Chevelle Malibu
> > > mailto:brianz@;dpsabq.com
> > >
> > >
> > > -Original Message-
> > > From: Dave Studly [mailto:chevelle@;studly.net]
> > > Sent: Tuesday, October 22, 2002 9:00 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: RE: [Chevelle-List] SBC Cam selection
> > >
> > >
> > > Brian,
> > >
> > > I'm no expert, but it almost sounds like you're splitting 
> hairs.  You
> > > mention the car being a daily driver, so I'm gonna assume 
> you're not
> drag
> > > racing it much.  Adding .015-inch of lift is going to be 
> difficult to
> feel
> > > in the seat of your pants.  Have you thought about 
> switching to 1.6
> > rockers
> > > instead?  If you have .440 lift now with stock (1.5) 
> rockers, swapping
> to
> > > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) 
> * 1.6).  This
> > also
> > > adds a few degrees of duration.  A *much* easier swap than a cam.
> > >
> > > I dont think you'll really want a cam with more than .470 
> lift and ~225
> > > degrees duration (@ .050") with a stock converter.  You 
> should be able
> to
> > > get away with stock valve springs in all of these cases.  
> Don't quote me
> > on
> > > that last part, though.
> > >
> > > You have a pretty well-matched combo for low-mid torque.  

Re: [Chevelle-List] Pics from Bristol...

[WCross9844]

Herb

Great F**&^% pictures, even in the rain...thanks for the show !

Bill C
Ct

Re: [Chevelle-List] SBC Cam selection

[Don]

Well stated Dave. I agree completely.
Don

> Rodney,
>
> No, don't worry too much.  For all the talk on this thread about lift
> numbers and streetability, duration numbers are really more important in
> keeping a motor well-mannered for the street.  Roller cams allow much more
> aggressive lobe profiles that will allow a higher amount of lift to be
> achieved for a given duration when compared against a flat-tappet cam.
> (because it allows a steeper ramp for the roller lifter)  I'll bet if you
> look at the duration specs on your cam, it's under 230 degrees @ .050".
You
> also have much more modern heads which probably flow better than Brian's
> vintage heads.  These two differences mean a lot.
>
> I'm sure most of us would run roller cams in our old motors if it didnt
cost
> so much ~ $800 for the cam and lifters that retrofit into the older
blocks.
> I know I would.  They are superior in pretty much every respect.
>
> -Dave
>
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Rodney.
> Sent: Wednesday, October 23, 2002 5:50 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] SBC Cam selection
>
>
> You guys are scaring me... I just bought a crate engine with a hydrolic
> roller with a .525 lift (the ZZ4 HOT cam) and L-98 aluminum vette heads...
> It's being shipped as we speak.  Did I overdue it for a street car?   BTW
> it's 375 horse and 417 ft./lb torque.
>
>
> Rodney.
> 71 Chevelle
> El Mirage, AZ
>
>
>
>
> - Original Message -
> From: "Brian Zack" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 23, 2002 9:15 AM
> Subject: RE: [Chevelle-List] SBC Cam selection
>
>
> > Is a .467 lift too large for the street?  Thanks for the replies. I dont
> > want to go too big. I know if I had considered going up to say .480 I
> would
> > probably kill my driveability and low end torque and be over camming it.
I
> > guess I'll call Comp. cams and/or Crane cams and talk with them to
answer
> > any more recommendations or things to beware of. Tom, Did you get the
cam
> > specs on your Cutlass?
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> >
> > -Original Message-
> > From: Don [mailto:doverpeck@;cinci.rr.com]
> > Sent: Wednesday, October 23, 2002 10:04 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [Chevelle-List] SBC Cam selection
> >
> >
> >
> > Just be careful Brian. The number 1 mistake street engine builders make
is
> > to over-cam & over-carburate.
> > Don
> >
> >
> > > I am considering doing the cam change because ever since I built the
> > engine
> > > about a year ago, the new crane cam and lifters will clatter and tap
> every
> > > so often and I'm not sure if this could be damaging the cam lobes too
or
> > > not. I have tried re-adjusting the valves  2 or 3 times and it seems
to
> go
> > > away for a little bit then comes back. I have tried different amount
of
> > > turns starting at 1/2 turn after clattering stops and am now between
3/4
> > to
> > > 1 turn. I have also tries marvel mystery oil to see if that would help
a
> > > sticking lifter. No help. Being a daily driver, I can only alow a
> weekend
> > > down time and dont want to just buy lifters and then get into it and
> find
> > > out the cam is going bad too and not be able to get another one right
> > away.
> > > I know eventually, a bigger stall converter (and tranny cooler at the
> same
> > > time) will help my seat of the pants feel. I did a mild polishing of
the
> > > ports on the redone heads when I built it.  I also want to eventually
> > change
> > > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that
with
> > the
> > > horsepower bug, you always want just a little more and still keep it
> > > streetable. ; ). Any other comments would be appreciated.
> > > Thanks
> > >
> > > Brian Zack
> > > '70 Chevelle Malibu
> > > mailto:brianz@;dpsabq.com
> > >
> > >
> > > -Original Message-
> > > From: Dave Studly [mailto:chevelle@;studly.net]
> > > Sent: Tuesday, October 22, 2002 9:00 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: RE: [Chevelle-List] SBC Cam selection
> > >
> > >
> > > Brian,
> > >
> > > I'm no expert, but it almost sounds like you're splitting hairs.  You
> > > mention the car being a daily driver, so I'm gonna assume you're not
> drag
> > > racing it much.  Adding .015-inch of lift is going to be difficult to
> feel
> > > in the seat of your pants.  Have you thought about switching to 1.6
> > rockers
> > > instead?  If you have .440 lift now with stock (1.5) rockers, swapping
> to
> > > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
> > also
> > > adds a few degrees of duration.  A *much* easier swap than a cam.
> > >
> > > I dont think you'll really want a cam with more than .470 lift and
~225
> > > degrees duration (@ .050") with a stock converter.  You should be able
> to
> > > get away with stock valve springs in all of these cases.  D

RE: [Chevelle-List] SBC Cam selection

[Dave Studly]

Rodney,

No, don't worry too much.  For all the talk on this thread about lift
numbers and streetability, duration numbers are really more important in
keeping a motor well-mannered for the street.  Roller cams allow much more
aggressive lobe profiles that will allow a higher amount of lift to be
achieved for a given duration when compared against a flat-tappet cam.
(because it allows a steeper ramp for the roller lifter)  I'll bet if you
look at the duration specs on your cam, it's under 230 degrees @ .050".  You
also have much more modern heads which probably flow better than Brian's
vintage heads.  These two differences mean a lot.

I'm sure most of us would run roller cams in our old motors if it didnt cost
so much ~ $800 for the cam and lifters that retrofit into the older blocks.
I know I would.  They are superior in pretty much every respect.

-Dave


-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Rodney.
Sent: Wednesday, October 23, 2002 5:50 PM
To: [EMAIL PROTECTED]
Subject: Re: [Chevelle-List] SBC Cam selection


You guys are scaring me... I just bought a crate engine with a hydrolic
roller with a .525 lift (the ZZ4 HOT cam) and L-98 aluminum vette heads...
It's being shipped as we speak.  Did I overdue it for a street car?   BTW
it's 375 horse and 417 ft./lb torque.


Rodney.
71 Chevelle
El Mirage, AZ




- Original Message -
From: "Brian Zack" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 23, 2002 9:15 AM
Subject: RE: [Chevelle-List] SBC Cam selection


> Is a .467 lift too large for the street?  Thanks for the replies. I dont
> want to go too big. I know if I had considered going up to say .480 I
would
> probably kill my driveability and low end torque and be over camming it. I
> guess I'll call Comp. cams and/or Crane cams and talk with them to answer
> any more recommendations or things to beware of. Tom, Did you get the cam
> specs on your Cutlass?
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
>
> -Original Message-
> From: Don [mailto:doverpeck@;cinci.rr.com]
> Sent: Wednesday, October 23, 2002 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] SBC Cam selection
>
>
>
> Just be careful Brian. The number 1 mistake street engine builders make is
> to over-cam & over-carburate.
> Don
>
>
> > I am considering doing the cam change because ever since I built the
> engine
> > about a year ago, the new crane cam and lifters will clatter and tap
every
> > so often and I'm not sure if this could be damaging the cam lobes too or
> > not. I have tried re-adjusting the valves  2 or 3 times and it seems to
go
> > away for a little bit then comes back. I have tried different amount of
> > turns starting at 1/2 turn after clattering stops and am now between 3/4
> to
> > 1 turn. I have also tries marvel mystery oil to see if that would help a
> > sticking lifter. No help. Being a daily driver, I can only alow a
weekend
> > down time and dont want to just buy lifters and then get into it and
find
> > out the cam is going bad too and not be able to get another one right
> away.
> > I know eventually, a bigger stall converter (and tranny cooler at the
same
> > time) will help my seat of the pants feel. I did a mild polishing of the
> > ports on the redone heads when I built it.  I also want to eventually
> change
> > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that with
> the
> > horsepower bug, you always want just a little more and still keep it
> > streetable. ; ). Any other comments would be appreciated.
> > Thanks
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> > -Original Message-
> > From: Dave Studly [mailto:chevelle@;studly.net]
> > Sent: Tuesday, October 22, 2002 9:00 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: [Chevelle-List] SBC Cam selection
> >
> >
> > Brian,
> >
> > I'm no expert, but it almost sounds like you're splitting hairs.  You
> > mention the car being a daily driver, so I'm gonna assume you're not
drag
> > racing it much.  Adding .015-inch of lift is going to be difficult to
feel
> > in the seat of your pants.  Have you thought about switching to 1.6
> rockers
> > instead?  If you have .440 lift now with stock (1.5) rockers, swapping
to
> > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
> also
> > adds a few degrees of duration.  A *much* easier swap than a cam.
> >
> > I dont think you'll really want a cam with more than .470 lift and ~225
> > degrees duration (@ .050") with a stock converter.  You should be able
to
> > get away with stock valve springs in all of these cases.  Don't quote me
> on
> > that last part, though.
> >
> > You have a pretty well-matched combo for low-mid torque.  Carb tuning
> (using
> > a dragstrip or dyno to verify your results) can make a noticeable
> difference
> > in power and mileage if you haven't done so.  It's not glorious like a
n

Re: [Chevelle-List] SBC Cam selection

[Chad P.]

that sounds like great horsepower.  I always thought 400HP,400 torque, was
significant.  And plus, you can never have too much HP.
Chad

- Original Message -
From: "Rodney." <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 23, 2002 5:49 PM
Subject: Re: [Chevelle-List] SBC Cam selection


> You guys are scaring me... I just bought a crate engine with a hydrolic
> roller with a .525 lift (the ZZ4 HOT cam) and L-98 aluminum vette heads...
> It's being shipped as we speak.  Did I overdue it for a street car?   BTW
> it's 375 horse and 417 ft./lb torque.
>
>
> Rodney.
> 71 Chevelle
> El Mirage, AZ
>
>
>
>
> - Original Message -
> From: "Brian Zack" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 23, 2002 9:15 AM
> Subject: RE: [Chevelle-List] SBC Cam selection
>
>
> > Is a .467 lift too large for the street?  Thanks for the replies. I dont
> > want to go too big. I know if I had considered going up to say .480 I
> would
> > probably kill my driveability and low end torque and be over camming it.
I
> > guess I'll call Comp. cams and/or Crane cams and talk with them to
answer
> > any more recommendations or things to beware of. Tom, Did you get the
cam
> > specs on your Cutlass?
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> >
> > -Original Message-
> > From: Don [mailto:doverpeck@;cinci.rr.com]
> > Sent: Wednesday, October 23, 2002 10:04 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: [Chevelle-List] SBC Cam selection
> >
> >
> >
> > Just be careful Brian. The number 1 mistake street engine builders make
is
> > to over-cam & over-carburate.
> > Don
> >
> >
> > > I am considering doing the cam change because ever since I built the
> > engine
> > > about a year ago, the new crane cam and lifters will clatter and tap
> every
> > > so often and I'm not sure if this could be damaging the cam lobes too
or
> > > not. I have tried re-adjusting the valves  2 or 3 times and it seems
to
> go
> > > away for a little bit then comes back. I have tried different amount
of
> > > turns starting at 1/2 turn after clattering stops and am now between
3/4
> > to
> > > 1 turn. I have also tries marvel mystery oil to see if that would help
a
> > > sticking lifter. No help. Being a daily driver, I can only alow a
> weekend
> > > down time and dont want to just buy lifters and then get into it and
> find
> > > out the cam is going bad too and not be able to get another one right
> > away.
> > > I know eventually, a bigger stall converter (and tranny cooler at the
> same
> > > time) will help my seat of the pants feel. I did a mild polishing of
the
> > > ports on the redone heads when I built it.  I also want to eventually
> > change
> > > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that
with
> > the
> > > horsepower bug, you always want just a little more and still keep it
> > > streetable. ; ). Any other comments would be appreciated.
> > > Thanks
> > >
> > > Brian Zack
> > > '70 Chevelle Malibu
> > > mailto:brianz@;dpsabq.com
> > >
> > >
> > > -Original Message-
> > > From: Dave Studly [mailto:chevelle@;studly.net]
> > > Sent: Tuesday, October 22, 2002 9:00 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: RE: [Chevelle-List] SBC Cam selection
> > >
> > >
> > > Brian,
> > >
> > > I'm no expert, but it almost sounds like you're splitting hairs.  You
> > > mention the car being a daily driver, so I'm gonna assume you're not
> drag
> > > racing it much.  Adding .015-inch of lift is going to be difficult to
> feel
> > > in the seat of your pants.  Have you thought about switching to 1.6
> > rockers
> > > instead?  If you have .440 lift now with stock (1.5) rockers, swapping
> to
> > > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
> > also
> > > adds a few degrees of duration.  A *much* easier swap than a cam.
> > >
> > > I dont think you'll really want a cam with more than .470 lift and
~225
> > > degrees duration (@ .050") with a stock converter.  You should be able
> to
> > > get away with stock valve springs in all of these cases.  Don't quote
me
> > on
> > > that last part, though.
> > >
> > > You have a pretty well-matched combo for low-mid torque.  Carb tuning
> > (using
> > > a dragstrip or dyno to verify your results) can make a noticeable
> > difference
> > > in power and mileage if you haven't done so.  It's not glorious like a
> new
> > > cam, but it can be just as rewarding in the end.
> > >
> > > As an aside, I was just at the dragstrip this past sunday and a friend
> was
> > > there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
> > exhaust
> > > which killed the good low-end torque he had (motor is stock, except
for
> > > slightly modded air box).  To remedy that, he changed the torque
> converter
> > > to one from a S-10 application (he estimated 2000-2100 stall, versus
> > > 1200-1300 sto

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

One thing I've heard is that a roller cam will have more lift and still be
streetable and make more power. A crate engine will have parts that will all
work together nicely plus your heads will flow better. 

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com




-Original Message-
From: Rodney. [mailto:71chevelle@;dscf.org]
Sent: Wednesday, October 23, 2002 3:50 PM
To: [EMAIL PROTECTED]
Subject: Re: [Chevelle-List] SBC Cam selection


You guys are scaring me... I just bought a crate engine with a hydrolic
roller with a .525 lift (the ZZ4 HOT cam) and L-98 aluminum vette heads...
It's being shipped as we speak.  Did I overdue it for a street car?   BTW
it's 375 horse and 417 ft./lb torque.


Rodney.
71 Chevelle
El Mirage, AZ




- Original Message -
From: "Brian Zack" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 23, 2002 9:15 AM
Subject: RE: [Chevelle-List] SBC Cam selection


> Is a .467 lift too large for the street?  Thanks for the replies. I dont
> want to go too big. I know if I had considered going up to say .480 I
would
> probably kill my driveability and low end torque and be over camming it. I
> guess I'll call Comp. cams and/or Crane cams and talk with them to answer
> any more recommendations or things to beware of. Tom, Did you get the cam
> specs on your Cutlass?
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
>
> -Original Message-
> From: Don [mailto:doverpeck@;cinci.rr.com]
> Sent: Wednesday, October 23, 2002 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] SBC Cam selection
>
>
>
> Just be careful Brian. The number 1 mistake street engine builders make is
> to over-cam & over-carburate.
> Don
>
>
> > I am considering doing the cam change because ever since I built the
> engine
> > about a year ago, the new crane cam and lifters will clatter and tap
every
> > so often and I'm not sure if this could be damaging the cam lobes too or
> > not. I have tried re-adjusting the valves  2 or 3 times and it seems to
go
> > away for a little bit then comes back. I have tried different amount of
> > turns starting at 1/2 turn after clattering stops and am now between 3/4
> to
> > 1 turn. I have also tries marvel mystery oil to see if that would help a
> > sticking lifter. No help. Being a daily driver, I can only alow a
weekend
> > down time and dont want to just buy lifters and then get into it and
find
> > out the cam is going bad too and not be able to get another one right
> away.
> > I know eventually, a bigger stall converter (and tranny cooler at the
same
> > time) will help my seat of the pants feel. I did a mild polishing of the
> > ports on the redone heads when I built it.  I also want to eventually
> change
> > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that with
> the
> > horsepower bug, you always want just a little more and still keep it
> > streetable. ; ). Any other comments would be appreciated.
> > Thanks
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> > -Original Message-
> > From: Dave Studly [mailto:chevelle@;studly.net]
> > Sent: Tuesday, October 22, 2002 9:00 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: [Chevelle-List] SBC Cam selection
> >
> >
> > Brian,
> >
> > I'm no expert, but it almost sounds like you're splitting hairs.  You
> > mention the car being a daily driver, so I'm gonna assume you're not
drag
> > racing it much.  Adding .015-inch of lift is going to be difficult to
feel
> > in the seat of your pants.  Have you thought about switching to 1.6
> rockers
> > instead?  If you have .440 lift now with stock (1.5) rockers, swapping
to
> > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
> also
> > adds a few degrees of duration.  A *much* easier swap than a cam.
> >
> > I dont think you'll really want a cam with more than .470 lift and ~225
> > degrees duration (@ .050") with a stock converter.  You should be able
to
> > get away with stock valve springs in all of these cases.  Don't quote me
> on
> > that last part, though.
> >
> > You have a pretty well-matched combo for low-mid torque.  Carb tuning
> (using
> > a dragstrip or dyno to verify your results) can make a noticeable
> difference
> > in power and mileage if you haven't done so.  It's not glorious like a
new
> > cam, but it can be just as rewarding in the end.
> >
> > As an aside, I was just at the dragstrip this past sunday and a friend
was
> > there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
> exhaust
> > which killed the good low-end torque he had (motor is stock, except for
> > slightly modded air box).  To remedy that, he changed the torque
converter
> > to one from a S-10 application (he estimated 2000-2100 stall, versus
> > 1200-1300 stock -- no tach to truly verify these numbers.) and picked up
> .8
> > seconds in his quarter mile time and +5 MPH (it was also only in the
high
> > 40s, low 50s temperature-wise). 

Re: [Chevelle-List] SBC Cam selection

[Rodney.]

You guys are scaring me... I just bought a crate engine with a hydrolic
roller with a .525 lift (the ZZ4 HOT cam) and L-98 aluminum vette heads...
It's being shipped as we speak.  Did I overdue it for a street car?   BTW
it's 375 horse and 417 ft./lb torque.


Rodney.
71 Chevelle
El Mirage, AZ




- Original Message -
From: "Brian Zack" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 23, 2002 9:15 AM
Subject: RE: [Chevelle-List] SBC Cam selection


> Is a .467 lift too large for the street?  Thanks for the replies. I dont
> want to go too big. I know if I had considered going up to say .480 I
would
> probably kill my driveability and low end torque and be over camming it. I
> guess I'll call Comp. cams and/or Crane cams and talk with them to answer
> any more recommendations or things to beware of. Tom, Did you get the cam
> specs on your Cutlass?
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
>
> -Original Message-
> From: Don [mailto:doverpeck@;cinci.rr.com]
> Sent: Wednesday, October 23, 2002 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] SBC Cam selection
>
>
>
> Just be careful Brian. The number 1 mistake street engine builders make is
> to over-cam & over-carburate.
> Don
>
>
> > I am considering doing the cam change because ever since I built the
> engine
> > about a year ago, the new crane cam and lifters will clatter and tap
every
> > so often and I'm not sure if this could be damaging the cam lobes too or
> > not. I have tried re-adjusting the valves  2 or 3 times and it seems to
go
> > away for a little bit then comes back. I have tried different amount of
> > turns starting at 1/2 turn after clattering stops and am now between 3/4
> to
> > 1 turn. I have also tries marvel mystery oil to see if that would help a
> > sticking lifter. No help. Being a daily driver, I can only alow a
weekend
> > down time and dont want to just buy lifters and then get into it and
find
> > out the cam is going bad too and not be able to get another one right
> away.
> > I know eventually, a bigger stall converter (and tranny cooler at the
same
> > time) will help my seat of the pants feel. I did a mild polishing of the
> > ports on the redone heads when I built it.  I also want to eventually
> change
> > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that with
> the
> > horsepower bug, you always want just a little more and still keep it
> > streetable. ; ). Any other comments would be appreciated.
> > Thanks
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> > -Original Message-
> > From: Dave Studly [mailto:chevelle@;studly.net]
> > Sent: Tuesday, October 22, 2002 9:00 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: [Chevelle-List] SBC Cam selection
> >
> >
> > Brian,
> >
> > I'm no expert, but it almost sounds like you're splitting hairs.  You
> > mention the car being a daily driver, so I'm gonna assume you're not
drag
> > racing it much.  Adding .015-inch of lift is going to be difficult to
feel
> > in the seat of your pants.  Have you thought about switching to 1.6
> rockers
> > instead?  If you have .440 lift now with stock (1.5) rockers, swapping
to
> > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
> also
> > adds a few degrees of duration.  A *much* easier swap than a cam.
> >
> > I dont think you'll really want a cam with more than .470 lift and ~225
> > degrees duration (@ .050") with a stock converter.  You should be able
to
> > get away with stock valve springs in all of these cases.  Don't quote me
> on
> > that last part, though.
> >
> > You have a pretty well-matched combo for low-mid torque.  Carb tuning
> (using
> > a dragstrip or dyno to verify your results) can make a noticeable
> difference
> > in power and mileage if you haven't done so.  It's not glorious like a
new
> > cam, but it can be just as rewarding in the end.
> >
> > As an aside, I was just at the dragstrip this past sunday and a friend
was
> > there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
> exhaust
> > which killed the good low-end torque he had (motor is stock, except for
> > slightly modded air box).  To remedy that, he changed the torque
converter
> > to one from a S-10 application (he estimated 2000-2100 stall, versus
> > 1200-1300 stock -- no tach to truly verify these numbers.) and picked up
> .8
> > seconds in his quarter mile time and +5 MPH (it was also only in the
high
> > 40s, low 50s temperature-wise).  If you're not familiar with quarter
mile
> > times, that's a *big* improvement.  Getting the engine up into it's
torque
> > band quicker makes all the difference in the world.
> >
> > As another personal aside, I ran my quickest and fastest on Sunday with
my
> > 406-powered '70 -- 12.70 @ 107.  I was pretty happy about that.  If
> there's
> > one good thing about Ohio, it's low ETs in October!  :-)
> >
> > Torque rules!
> >
> > -Dave
> >
> >
> >
> >

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

Yes, that would be great. I'll try and look up a couple cams tonight and
e-mail you off list. I was hoping for 350 hp, but it probably wont hit that
mark exactly unless I change to better flowing heads. 


Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com


-Original Message-
From: Brad Waller [mailto:brad@;ep.com]
Sent: Wednesday, October 23, 2002 3:15 PM
To: [EMAIL PROTECTED]
Subject: RE: [Chevelle-List] SBC Cam selection


You're right, I don't know why I thought the XE cams were crane.  I was
looking for cams similar to yours and must have got stuck in my mind
that I was looking at Crane.  I have Dyno2000 and lots of cam and head
flow files, so I can run a quick simulation if you want.  These are
usually optimistic, and don't go into full detail, but they can usually
tell you if you are heading in the right direction with a single change
(cam or head).

Brad

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:owner-chevelle-list@;chevelles.net] On Behalf Of Brian Zack
> Sent: Wednesday, October 23, 2002 10:19 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> Aren't the extreme energy the comp cams line? I think it 
> would be under
> warranty. But, I bought it through Summit and we moved since 
> I bought it and
> I cant find the paperwork. So, I guess I'm outta luck. Also, 
> I think the XE
> cams require a spring change. I'll stop bugging all and give 
> a call to crane
> and comp. Thanks to everyone's advice. I think I'm a little closer to
> picking one. I'll let everyon know what the manufacturers say.
> 
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>  
> 
> -Original Message-
> From: Brad Waller [mailto:brad@;ep.com]
> Sent: Wednesday, October 23, 2002 11:05 AM
> To: [EMAIL PROTECTED]
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> I would think that .467 lift is perfectly fine for the street.  Of
> course, all combinations will depend on your driving style and the car
> setup.  With your very stock setup, you don't want to go too far from
> where you are.  You could look at something like the Crane XE262 or
> XE256 cam.  They sound smaller, but they are more aggressive than what
> you have, and the lift is still tame.  Both will give you great bottom
> end grunt.
> 
> XE256 (I/E) lift .447/.454  duration 256/268  
> XE262 (I/E) lift .462/.469  duration 262/270
> 
> Talk to the Crane Tech line and see what they have to 
> recommend, as well
> as if they have anything to say about your current cam issues.  Is it
> under warranty?
> 
> Brad Waller ([EMAIL PROTECTED])
> '66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
> '67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes



-
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To start a new topic, send mail to: [EMAIL PROTECTED]

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[Chevelle-List] RE: BBC cams

[Brad Waller]

I know very little on the Big Blocks, but I would think 450 HP from a 402
should be very streetable.  Changing intakes will change the height of your
air cleaner and could make it troublesome for your cowl induction.  You
could play it safe and use your existing intake and still hit 450 HP (and
lots of torque) even with the stock intake.  You might need to stick with a
lower profile manifold like the Performer, but I don't know if that will
still work with the cowl induction or be an improvement over your current
setup.
 
Give Edelbrock a call and see what they say.  They should know which
manifolds fit well, and they may have a suggestion as to what will work for
sure.

Brad Waller (  [EMAIL PROTECTED])
'66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
'67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes

-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-chevelle-list@;chevelles.net] On Behalf Of Craig A. Ellis
Sent: Wednesday, October 23, 2002 12:06 PM
To: 'Chevelle (E-mail)'
Subject: BBC cams



A while back one of you kind gents emailed me a breakdown of cam profile
data for BBCs, notably, the 450hp version. I opened that attachment but the
formating was somehow screwed up and I could not get the headings and the
data to line. Consequently, I can't figure out what is what. Can you please
point me to the website it came from or the book? Thanks.

Also, like Brian I am about to swap a cam out in my car. I'm open to
suggestions on profile. I've got a garden variety 350hp 402 motor with
roller rockers. I'm uncertain about the cam. I'm thinking about a roller cam
and I'm looking to boost the HP up to around 425 to 450. In the process I
accept that I'll be replacing the intake and carb. The other part of the
equation is that I drive it all summer. But I'll trade HP for a bit of
"driveability".

Another question comes to mind...if I swap the carb and intake to (for
example) an RPM Performer, will I be able to retain my cowl induction?

Craig E.

 

   


<>

RE: [Chevelle-List] SBC Cam selection

[Brad Waller]

You're right, I don't know why I thought the XE cams were crane.  I was
looking for cams similar to yours and must have got stuck in my mind
that I was looking at Crane.  I have Dyno2000 and lots of cam and head
flow files, so I can run a quick simulation if you want.  These are
usually optimistic, and don't go into full detail, but they can usually
tell you if you are heading in the right direction with a single change
(cam or head).

Brad

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:owner-chevelle-list@;chevelles.net] On Behalf Of Brian Zack
> Sent: Wednesday, October 23, 2002 10:19 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> Aren't the extreme energy the comp cams line? I think it 
> would be under
> warranty. But, I bought it through Summit and we moved since 
> I bought it and
> I cant find the paperwork. So, I guess I'm outta luck. Also, 
> I think the XE
> cams require a spring change. I'll stop bugging all and give 
> a call to crane
> and comp. Thanks to everyone's advice. I think I'm a little closer to
> picking one. I'll let everyon know what the manufacturers say.
> 
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>  
> 
> -Original Message-
> From: Brad Waller [mailto:brad@;ep.com]
> Sent: Wednesday, October 23, 2002 11:05 AM
> To: [EMAIL PROTECTED]
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> I would think that .467 lift is perfectly fine for the street.  Of
> course, all combinations will depend on your driving style and the car
> setup.  With your very stock setup, you don't want to go too far from
> where you are.  You could look at something like the Crane XE262 or
> XE256 cam.  They sound smaller, but they are more aggressive than what
> you have, and the lift is still tame.  Both will give you great bottom
> end grunt.
> 
> XE256 (I/E) lift .447/.454  duration 256/268  
> XE262 (I/E) lift .462/.469  duration 262/270
> 
> Talk to the Crane Tech line and see what they have to 
> recommend, as well
> as if they have anything to say about your current cam issues.  Is it
> under warranty?
> 
> Brad Waller ([EMAIL PROTECTED])
> '66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
> '67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes



-
To Unsubscribe please visit www.chevelles.net/list.html
To start a new topic, send mail to: [EMAIL PROTECTED]

[Chevelle-List] BBC cams

[Craig A. Ellis]

A while back one of you kind gents emailed me a breakdown of cam profile
data for BBCs, notably, the 450hp version. I opened that attachment but the
formating was somehow screwed up and I could not get the headings and the
data to line. Consequently, I can't figure out what is what. Can you please
point me to the website it came from or the book? Thanks.

Also, like Brian I am about to swap a cam out in my car. I'm open to
suggestions on profile. I've got a garden variety 350hp 402 motor with
roller rockers. I'm uncertain about the cam. I'm thinking about a roller cam
and I'm looking to boost the HP up to around 425 to 450. In the process I
accept that I'll be replacing the intake and carb. The other part of the
equation is that I drive it all summer. But I'll trade HP for a bit of
"driveability".

Another question comes to mind...if I swap the carb and intake to (for
example) an RPM Performer, will I be able to retain my cowl induction?

Craig E.

 

   


<>

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

Agrred. Plus, it's just not worth the hassle to try and 
get them to warranty.
 
Brian Zack'70 Chevelle 
Malibumailto:[EMAIL PROTECTED]
 

  -Original Message-From: Capt Crunch 
  [mailto:[EMAIL PROTECTED]]Sent: Wednesday, October 23, 2002 
  12:29 PMTo: [EMAIL PROTECTED]Subject: Re: 
  [Chevelle-List] SBC Cam selection
  I have never heard or seen of a cam manufacturer replacing a cam under 
  warranty. Most of them are pretty strict with their policy because about 95% 
  of all cam problems are due to improper installation, bad geometry, or other 
  non-camshaft (it's self) problem.
   
  Mikey
   
  
- Original Message -
From: 
Brian Zack
Sent: Wednesday, October 23, 2002 12:20 
PM
To: '[EMAIL PROTECTED]'
Subject: RE: [Chevelle-List] SBC Cam 
selection
 Aren't the extreme energy the comp cams line? I think it 
would be underwarranty. But, I bought it through Summit and we moved 
since I bought it andI cant find the paperwork. So, I guess I'm outta 
luck. Also, I think the XEcams require a spring change. I'll stop 
bugging all and give a call to craneand comp. Thanks to everyone's 
advice. I think I'm a little closer topicking one. I'll let everyon know 
what the manufacturers say.Brian Zack'70 Chevelle 
Malibumailto:[EMAIL PROTECTED]

Re: [Chevelle-List] SBC Cam selection

[Capt Crunch]

I have never heard or seen of a cam manufacturer replacing a cam under warranty. Most of them are pretty strict with their policy because about 95% of all cam problems are due to improper installation, bad geometry, or other non-camshaft (it's self) problem.   Mikey    - Original Message - From: Brian Zack Sent: Wednesday, October 23, 2002 12:20 PM To: '[EMAIL PROTECTED]' Subject: RE: [Chevelle-List] SBC Cam selection  Aren't the extreme energy the comp cams line? I think it would be underwarranty. But, I bought it through Summit and we moved since I bought it andI cant find the paperwork. So, I guess I'm outta luck. Also, I think the XEcams require a spring change. I'll stop bugging all and give a call to craneand comp. Thanks to everyone's advice. I think I'm a little closer topicking one. I'll let everyon know what the manufacturers say.Brian Zack'70 Chevelle Malibumailto:[EMAIL PROTECTED]

[Chevelle-List] Disc brakes

[Brian Zack]

By the way thaks to Chevelle69 for the link to undercar specialty
(http://www.undercarspecialty.com/index.html) I ordered all the replaceable
parts for my chevelle's changeover to disc brakes and including shipping and
paying the core charges, they still beat anyone in town here in Rio Rancho
New Mexico. I am going to be starting the conversion on Friday and will let
all know how it goes. Parts all look good. It sure is going to be a change
to have discs over the "I think I should do the Fred Flintstone type of
stop" to work better than those 4 wheel manual drums. ; ).

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com




-
To Unsubscribe please visit www.chevelles.net/list.html
To start a new topic, send mail to: [EMAIL PROTECTED]

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

Aren't the extreme energy the comp cams line? I think it would be under
warranty. But, I bought it through Summit and we moved since I bought it and
I cant find the paperwork. So, I guess I'm outta luck. Also, I think the XE
cams require a spring change. I'll stop bugging all and give a call to crane
and comp. Thanks to everyone's advice. I think I'm a little closer to
picking one. I'll let everyon know what the manufacturers say.

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com
 

-Original Message-
From: Brad Waller [mailto:brad@;ep.com]
Sent: Wednesday, October 23, 2002 11:05 AM
To: [EMAIL PROTECTED]
Subject: RE: [Chevelle-List] SBC Cam selection


I would think that .467 lift is perfectly fine for the street.  Of
course, all combinations will depend on your driving style and the car
setup.  With your very stock setup, you don't want to go too far from
where you are.  You could look at something like the Crane XE262 or
XE256 cam.  They sound smaller, but they are more aggressive than what
you have, and the lift is still tame.  Both will give you great bottom
end grunt.

XE256 (I/E) lift .447/.454  duration 256/268  
XE262 (I/E) lift .462/.469  duration 262/270

Talk to the Crane Tech line and see what they have to recommend, as well
as if they have anything to say about your current cam issues.  Is it
under warranty?

Brad Waller ([EMAIL PROTECTED])
'66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
'67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:owner-chevelle-list@;chevelles.net] On Behalf Of Brian Zack
> Sent: Wednesday, October 23, 2002 9:16 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> Is a .467 lift too large for the street?  Thanks for the 
> replies. I dont
> want to go too big. I know if I had considered going up to 
> say .480 I would
> probably kill my driveability and low end torque and be over 
> camming it. I
> guess I'll call Comp. cams and/or Crane cams and talk with 
> them to answer
> any more recommendations or things to beware of. Tom, Did you 
> get the cam
> specs on your Cutlass? 
> 
>
> 
> 
> -Original Message-
> From: Don [mailto:doverpeck@;cinci.rr.com]
> Sent: Wednesday, October 23, 2002 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] SBC Cam selection
> 
> 
> 
> Just be careful Brian. The number 1 mistake street engine 
> builders make is
> to over-cam & over-carburate.
> Don
> 
> 
> > I am considering doing the cam change because ever since I built the
> engine
> > about a year ago, the new crane cam and lifters will 
> clatter and tap every
> > so often and I'm not sure if this could be damaging the cam 
> lobes too or
> > not. I have tried re-adjusting the valves  2 or 3 times and 
> it seems to go
> > away for a little bit then comes back. I have tried 
> different amount of
> > turns starting at 1/2 turn after clattering stops and am 
> now between 3/4
> to
> > 1 turn. I have also tries marvel mystery oil to see if that 
> would help a
> > sticking lifter. No help. Being a daily driver, I can only 
> alow a weekend
> > down time and dont want to just buy lifters and then get 
> into it and find
> > out the cam is going bad too and not be able to get another 
> one right
> away.
> > I know eventually, a bigger stall converter (and tranny 
> cooler at the same
> > time) will help my seat of the pants feel. I did a mild 
> polishing of the
> > ports on the redone heads when I built it.  I also want to 
> eventually
> change
> > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You 
> know that with
> the
> > horsepower bug, you always want just a little more and still keep it
> > streetable. ; ). Any other comments would be appreciated.
> > Thanks
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> > -Original Message-
> > From: Dave Studly [mailto:chevelle@;studly.net]
> > Sent: Tuesday, October 22, 2002 9:00 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: [Chevelle-List] SBC Cam selection
> >
> >
> > Brian,
> >
> > I'm no expert, but it almost sounds like you're splitting 
> hairs.  You
> > mention the car being a daily driver, so I'm gonna assume 
> you're not drag
> > racing it much.  Adding .015-inch of lift is going to be 
> difficult to feel
> > in the seat of your pants.  Have you thought about switching to 1.6
> rockers
> > instead?  If you have .440 lift now with stock (1.5) 
> rockers, swapping to
> > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 
> 1.6).  This
> also
> > adds a few degrees of duration.  A *much* easier swap than a cam.
> >
> > I dont think you'll really want a cam with more than .470 
> lift and ~225
> > degrees duration (@ .050") with a stock converter.  You 
> should be able to
> > get away with stock valve springs in all of these cases.  
> Don't quote me
> on
> > that last part, though.
> >
> > You have a pretty 

RE: [Chevelle-List] SBC Cam selection

[Brad Waller]

I would think that .467 lift is perfectly fine for the street.  Of
course, all combinations will depend on your driving style and the car
setup.  With your very stock setup, you don’t want to go too far from
where you are.  You could look at something like the Crane XE262 or
XE256 cam.  They sound smaller, but they are more aggressive than what
you have, and the lift is still tame.  Both will give you great bottom
end grunt.

XE256 (I/E) lift .447/.454  duration 256/268  
XE262 (I/E) lift .462/.469  duration 262/270

Talk to the Crane Tech line and see what they have to recommend, as well
as if they have anything to say about your current cam issues.  Is it
under warranty?

Brad Waller ([EMAIL PROTECTED])
'66 Corvette | 327/dead | 4-speed   | Wilwood Brakes | 245/45/16 BFGs
'67 Chevelle | ex-SS396 | 355/700R4 | '79 F-Body Brakes

> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:owner-chevelle-list@;chevelles.net] On Behalf Of Brian Zack
> Sent: Wednesday, October 23, 2002 9:16 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: [Chevelle-List] SBC Cam selection
> 
> 
> Is a .467 lift too large for the street?  Thanks for the 
> replies. I dont
> want to go too big. I know if I had considered going up to 
> say .480 I would
> probably kill my driveability and low end torque and be over 
> camming it. I
> guess I'll call Comp. cams and/or Crane cams and talk with 
> them to answer
> any more recommendations or things to beware of. Tom, Did you 
> get the cam
> specs on your Cutlass? 
> 
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
> 
> 
> 
> -Original Message-
> From: Don [mailto:doverpeck@;cinci.rr.com]
> Sent: Wednesday, October 23, 2002 10:04 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [Chevelle-List] SBC Cam selection
> 
> 
> 
> Just be careful Brian. The number 1 mistake street engine 
> builders make is
> to over-cam & over-carburate.
> Don
> 
> 
> > I am considering doing the cam change because ever since I built the
> engine
> > about a year ago, the new crane cam and lifters will 
> clatter and tap every
> > so often and I'm not sure if this could be damaging the cam 
> lobes too or
> > not. I have tried re-adjusting the valves  2 or 3 times and 
> it seems to go
> > away for a little bit then comes back. I have tried 
> different amount of
> > turns starting at 1/2 turn after clattering stops and am 
> now between 3/4
> to
> > 1 turn. I have also tries marvel mystery oil to see if that 
> would help a
> > sticking lifter. No help. Being a daily driver, I can only 
> alow a weekend
> > down time and dont want to just buy lifters and then get 
> into it and find
> > out the cam is going bad too and not be able to get another 
> one right
> away.
> > I know eventually, a bigger stall converter (and tranny 
> cooler at the same
> > time) will help my seat of the pants feel. I did a mild 
> polishing of the
> > ports on the redone heads when I built it.  I also want to 
> eventually
> change
> > to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You 
> know that with
> the
> > horsepower bug, you always want just a little more and still keep it
> > streetable. ; ). Any other comments would be appreciated.
> > Thanks
> >
> > Brian Zack
> > '70 Chevelle Malibu
> > mailto:brianz@;dpsabq.com
> >
> >
> > -Original Message-
> > From: Dave Studly [mailto:chevelle@;studly.net]
> > Sent: Tuesday, October 22, 2002 9:00 PM
> > To: [EMAIL PROTECTED]
> > Subject: RE: [Chevelle-List] SBC Cam selection
> >
> >
> > Brian,
> >
> > I'm no expert, but it almost sounds like you're splitting 
> hairs.  You
> > mention the car being a daily driver, so I'm gonna assume 
> you're not drag
> > racing it much.  Adding .015-inch of lift is going to be 
> difficult to feel
> > in the seat of your pants.  Have you thought about switching to 1.6
> rockers
> > instead?  If you have .440 lift now with stock (1.5) 
> rockers, swapping to
> > 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 
> 1.6).  This
> also
> > adds a few degrees of duration.  A *much* easier swap than a cam.
> >
> > I dont think you'll really want a cam with more than .470 
> lift and ~225
> > degrees duration (@ .050") with a stock converter.  You 
> should be able to
> > get away with stock valve springs in all of these cases.  
> Don't quote me
> on
> > that last part, though.
> >
> > You have a pretty well-matched combo for low-mid torque.  
> Carb tuning
> (using
> > a dragstrip or dyno to verify your results) can make a noticeable
> difference
> > in power and mileage if you haven't done so.  It's not 
> glorious like a new
> > cam, but it can be just as rewarding in the end.
> >
> > As an aside, I was just at the dragstrip this past sunday 
> and a friend was
> > there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
> exhaust
> > which killed the good low-end torque he had (motor is 
> stock, except for
> > slightly modded air box).  To remedy that, he changed the 
> torque converter
> 

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

Is a .467 lift too large for the street?  Thanks for the replies. I dont
want to go too big. I know if I had considered going up to say .480 I would
probably kill my driveability and low end torque and be over camming it. I
guess I'll call Comp. cams and/or Crane cams and talk with them to answer
any more recommendations or things to beware of. Tom, Did you get the cam
specs on your Cutlass? 

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com



-Original Message-
From: Don [mailto:doverpeck@;cinci.rr.com]
Sent: Wednesday, October 23, 2002 10:04 AM
To: [EMAIL PROTECTED]
Subject: Re: [Chevelle-List] SBC Cam selection



Just be careful Brian. The number 1 mistake street engine builders make is
to over-cam & over-carburate.
Don


> I am considering doing the cam change because ever since I built the
engine
> about a year ago, the new crane cam and lifters will clatter and tap every
> so often and I'm not sure if this could be damaging the cam lobes too or
> not. I have tried re-adjusting the valves  2 or 3 times and it seems to go
> away for a little bit then comes back. I have tried different amount of
> turns starting at 1/2 turn after clattering stops and am now between 3/4
to
> 1 turn. I have also tries marvel mystery oil to see if that would help a
> sticking lifter. No help. Being a daily driver, I can only alow a weekend
> down time and dont want to just buy lifters and then get into it and find
> out the cam is going bad too and not be able to get another one right
away.
> I know eventually, a bigger stall converter (and tranny cooler at the same
> time) will help my seat of the pants feel. I did a mild polishing of the
> ports on the redone heads when I built it.  I also want to eventually
change
> to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that with
the
> horsepower bug, you always want just a little more and still keep it
> streetable. ; ). Any other comments would be appreciated.
> Thanks
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
> -Original Message-
> From: Dave Studly [mailto:chevelle@;studly.net]
> Sent: Tuesday, October 22, 2002 9:00 PM
> To: [EMAIL PROTECTED]
> Subject: RE: [Chevelle-List] SBC Cam selection
>
>
> Brian,
>
> I'm no expert, but it almost sounds like you're splitting hairs.  You
> mention the car being a daily driver, so I'm gonna assume you're not drag
> racing it much.  Adding .015-inch of lift is going to be difficult to feel
> in the seat of your pants.  Have you thought about switching to 1.6
rockers
> instead?  If you have .440 lift now with stock (1.5) rockers, swapping to
> 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
also
> adds a few degrees of duration.  A *much* easier swap than a cam.
>
> I dont think you'll really want a cam with more than .470 lift and ~225
> degrees duration (@ .050") with a stock converter.  You should be able to
> get away with stock valve springs in all of these cases.  Don't quote me
on
> that last part, though.
>
> You have a pretty well-matched combo for low-mid torque.  Carb tuning
(using
> a dragstrip or dyno to verify your results) can make a noticeable
difference
> in power and mileage if you haven't done so.  It's not glorious like a new
> cam, but it can be just as rewarding in the end.
>
> As an aside, I was just at the dragstrip this past sunday and a friend was
> there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
exhaust
> which killed the good low-end torque he had (motor is stock, except for
> slightly modded air box).  To remedy that, he changed the torque converter
> to one from a S-10 application (he estimated 2000-2100 stall, versus
> 1200-1300 stock -- no tach to truly verify these numbers.) and picked up
.8
> seconds in his quarter mile time and +5 MPH (it was also only in the high
> 40s, low 50s temperature-wise).  If you're not familiar with quarter mile
> times, that's a *big* improvement.  Getting the engine up into it's torque
> band quicker makes all the difference in the world.
>
> As another personal aside, I ran my quickest and fastest on Sunday with my
> 406-powered '70 -- 12.70 @ 107.  I was pretty happy about that.  If
there's
> one good thing about Ohio, it's low ETs in October!  :-)
>
> Torque rules!
>
> -Dave
>
>
>
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Brian Zack
> Sent: Tuesday, October 22, 2002 2:28 PM
> To: Chevelle List (E-mail)
> Subject: [Chevelle-List] SBC Cam selection
>
>
> What is the largest cam any of you are running in a daily driver with a
> small block 350. I have a '70  Chevelle Malibu with a  350 4-bolt main,
> cast pistons, 9:1 compression stock heads, edlebrock performer manifold
> edlebrock 600 cfm carb, 1 5/8" headers, and dual 2" exhaust. It also has
the
> stock stall converter and I think either 2:73 ot 3:07 gears ( I have to
> verify that) Right now I have a crane energizer 266H which is 266 durati

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

The adjustment doesn't change. It is still where I set it, but it starts
clattering more and I was trying other adjustments to try and see if it
needed more since the adjustments I've read say 1/2 to 1 turn, so I thought
I'd try that. I think the lifters are just not staying pumped up. I am
wondering if it is doing any damage to the cam when it starts clattering. It
is mostly when it is warmed up to around 200 degrees  or more and it can be
when it has anywhere between 20psi to 40 psi oil pressure (varies when in
gear with foot on brake). The clattering will stop if I give it a little gas
and it stays not clattering for a little while. That is why I say the
lifters aren't staying pumped up.

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com




-Original Message-
From: Kent Lewis [mailto:z28ss43@;attbi.com]
Sent: Wednesday, October 23, 2002 9:50 AM
To: [EMAIL PROTECTED]
Subject: Re: [Chevelle-List] SBC Cam selection


Brian,

  If you keep "losing" the valve adjustment, perhaps a set of posi-locks
would help.

Kent
'68 Malibu ZZ502/502
ACES #5102


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Re: [Chevelle-List] SBC Cam selection

[Don]

Just be careful Brian. The number 1 mistake street engine builders make is
to over-cam & over-carburate.
Don


> I am considering doing the cam change because ever since I built the
engine
> about a year ago, the new crane cam and lifters will clatter and tap every
> so often and I'm not sure if this could be damaging the cam lobes too or
> not. I have tried re-adjusting the valves  2 or 3 times and it seems to go
> away for a little bit then comes back. I have tried different amount of
> turns starting at 1/2 turn after clattering stops and am now between 3/4
to
> 1 turn. I have also tries marvel mystery oil to see if that would help a
> sticking lifter. No help. Being a daily driver, I can only alow a weekend
> down time and dont want to just buy lifters and then get into it and find
> out the cam is going bad too and not be able to get another one right
away.
> I know eventually, a bigger stall converter (and tranny cooler at the same
> time) will help my seat of the pants feel. I did a mild polishing of the
> ports on the redone heads when I built it.  I also want to eventually
change
> to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that with
the
> horsepower bug, you always want just a little more and still keep it
> streetable. ; ). Any other comments would be appreciated.
> Thanks
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
> -Original Message-
> From: Dave Studly [mailto:chevelle@;studly.net]
> Sent: Tuesday, October 22, 2002 9:00 PM
> To: [EMAIL PROTECTED]
> Subject: RE: [Chevelle-List] SBC Cam selection
>
>
> Brian,
>
> I'm no expert, but it almost sounds like you're splitting hairs.  You
> mention the car being a daily driver, so I'm gonna assume you're not drag
> racing it much.  Adding .015-inch of lift is going to be difficult to feel
> in the seat of your pants.  Have you thought about switching to 1.6
rockers
> instead?  If you have .440 lift now with stock (1.5) rockers, swapping to
> 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
also
> adds a few degrees of duration.  A *much* easier swap than a cam.
>
> I dont think you'll really want a cam with more than .470 lift and ~225
> degrees duration (@ .050") with a stock converter.  You should be able to
> get away with stock valve springs in all of these cases.  Don't quote me
on
> that last part, though.
>
> You have a pretty well-matched combo for low-mid torque.  Carb tuning
(using
> a dragstrip or dyno to verify your results) can make a noticeable
difference
> in power and mileage if you haven't done so.  It's not glorious like a new
> cam, but it can be just as rewarding in the end.
>
> As an aside, I was just at the dragstrip this past sunday and a friend was
> there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
exhaust
> which killed the good low-end torque he had (motor is stock, except for
> slightly modded air box).  To remedy that, he changed the torque converter
> to one from a S-10 application (he estimated 2000-2100 stall, versus
> 1200-1300 stock -- no tach to truly verify these numbers.) and picked up
.8
> seconds in his quarter mile time and +5 MPH (it was also only in the high
> 40s, low 50s temperature-wise).  If you're not familiar with quarter mile
> times, that's a *big* improvement.  Getting the engine up into it's torque
> band quicker makes all the difference in the world.
>
> As another personal aside, I ran my quickest and fastest on Sunday with my
> 406-powered '70 -- 12.70 @ 107.  I was pretty happy about that.  If
there's
> one good thing about Ohio, it's low ETs in October!  :-)
>
> Torque rules!
>
> -Dave
>
>
>
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Brian Zack
> Sent: Tuesday, October 22, 2002 2:28 PM
> To: Chevelle List (E-mail)
> Subject: [Chevelle-List] SBC Cam selection
>
>
> What is the largest cam any of you are running in a daily driver with a
> small block 350. I have a '70  Chevelle Malibu with a  350 4-bolt main,
> cast pistons, 9:1 compression stock heads, edlebrock performer manifold
> edlebrock 600 cfm carb, 1 5/8" headers, and dual 2" exhaust. It also has
the
> stock stall converter and I think either 2:73 ot 3:07 gears ( I have to
> verify that) Right now I have a crane energizer 266H which is 266 duration
> and .440 lift. I am going to be changing to a larger cam and was wondering
> what max. size anyone might recommend. I was thinking of of the crane
> energizer w/ .467 lift or the crane energizer with .454 lift. But, I dont
> think the smaller one would give me that much of a difference. I think I
> would have to change my springs though and probably the converter. Has
> anyone used a larger cam and not upped the converter? I would assume it
> would probably hurt mileage and not have that great of low speed torque.
Any
> recommendations?
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
>
>
> --

Re: [Chevelle-List] SBC Cam selection

[Kent Lewis]

Brian,

  If you keep "losing" the valve adjustment, perhaps a set of posi-locks
would help.

Kent
'68 Malibu ZZ502/502
ACES #5102


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To Unsubscribe please visit www.chevelles.net/list.html
To start a new topic, send mail to: [EMAIL PROTECTED]

RE: [Chevelle-List] SBC Cam selection

[Brian Zack]

I am considering doing the cam change because ever since I built the engine
about a year ago, the new crane cam and lifters will clatter and tap every
so often and I'm not sure if this could be damaging the cam lobes too or
not. I have tried re-adjusting the valves  2 or 3 times and it seems to go
away for a little bit then comes back. I have tried different amount of
turns starting at 1/2 turn after clattering stops and am now between 3/4 to
1 turn. I have also tries marvel mystery oil to see if that would help a
sticking lifter. No help. Being a daily driver, I can only alow a weekend
down time and dont want to just buy lifters and then get into it and find
out the cam is going bad too and not be able to get another one right away.
I know eventually, a bigger stall converter (and tranny cooler at the same
time) will help my seat of the pants feel. I did a mild polishing of the
ports on the redone heads when I built it.  I also want to eventually change
to 2 1/2" exhaust and maybe 3:23(?) or 3:50(?) gears. You know that with the
horsepower bug, you always want just a little more and still keep it
streetable. ; ). Any other comments would be appreciated.
Thanks

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com


-Original Message-
From: Dave Studly [mailto:chevelle@;studly.net]
Sent: Tuesday, October 22, 2002 9:00 PM
To: [EMAIL PROTECTED]
Subject: RE: [Chevelle-List] SBC Cam selection


Brian,

I'm no expert, but it almost sounds like you're splitting hairs.  You
mention the car being a daily driver, so I'm gonna assume you're not drag
racing it much.  Adding .015-inch of lift is going to be difficult to feel
in the seat of your pants.  Have you thought about switching to 1.6 rockers
instead?  If you have .440 lift now with stock (1.5) rockers, swapping to
1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This also
adds a few degrees of duration.  A *much* easier swap than a cam.

I dont think you'll really want a cam with more than .470 lift and ~225
degrees duration (@ .050") with a stock converter.  You should be able to
get away with stock valve springs in all of these cases.  Don't quote me on
that last part, though.

You have a pretty well-matched combo for low-mid torque.  Carb tuning (using
a dragstrip or dyno to verify your results) can make a noticeable difference
in power and mileage if you haven't done so.  It's not glorious like a new
cam, but it can be just as rewarding in the end.

As an aside, I was just at the dragstrip this past sunday and a friend was
there with his 90's LT-1 Roadmaster station wagon.  He upgraded the exhaust
which killed the good low-end torque he had (motor is stock, except for
slightly modded air box).  To remedy that, he changed the torque converter
to one from a S-10 application (he estimated 2000-2100 stall, versus
1200-1300 stock -- no tach to truly verify these numbers.) and picked up .8
seconds in his quarter mile time and +5 MPH (it was also only in the high
40s, low 50s temperature-wise).  If you're not familiar with quarter mile
times, that's a *big* improvement.  Getting the engine up into it's torque
band quicker makes all the difference in the world.

As another personal aside, I ran my quickest and fastest on Sunday with my
406-powered '70 -- 12.70 @ 107.  I was pretty happy about that.  If there's
one good thing about Ohio, it's low ETs in October!  :-)

Torque rules!

-Dave




-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Brian Zack
Sent: Tuesday, October 22, 2002 2:28 PM
To: Chevelle List (E-mail)
Subject: [Chevelle-List] SBC Cam selection


What is the largest cam any of you are running in a daily driver with a
small block 350. I have a '70  Chevelle Malibu with a  350 4-bolt main,
cast pistons, 9:1 compression stock heads, edlebrock performer manifold
edlebrock 600 cfm carb, 1 5/8" headers, and dual 2" exhaust. It also has the
stock stall converter and I think either 2:73 ot 3:07 gears ( I have to
verify that) Right now I have a crane energizer 266H which is 266 duration
and .440 lift. I am going to be changing to a larger cam and was wondering
what max. size anyone might recommend. I was thinking of of the crane
energizer w/ .467 lift or the crane energizer with .454 lift. But, I dont
think the smaller one would give me that much of a difference. I think I
would have to change my springs though and probably the converter. Has
anyone used a larger cam and not upped the converter? I would assume it
would probably hurt mileage and not have that great of low speed torque. Any
recommendations?

Brian Zack
'70 Chevelle Malibu
mailto:brianz@;dpsabq.com




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To start a new topic, send mail to: [EMAIL PROTECTED]


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[Chevelle-List] Attn: Steve Lentz

[Kent Lewis]

Steve,

  Any chance you have a "502" in your Chevelle ? ( [EMAIL PROTECTED])


Kent
'68 Malibu  ZZ502/502
ACES #5102


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RE: [Chevelle-List] Pics from Bristol...

[Dale McIntosh]

 

Super pictures Herb.  The custom (bronze/brown) Buick
in the picture with Chuck was at the KC Goodguys show
in October this year…wild custom! 
FWIW, I know the 59 Elky was the first year
for GM but Ford had the Ranchero in 57 that started it all.  GM always seemed to be a couple of years late;
the Camaro/Firebird was another example of catch-up.

 

Dale

 





I'm back and the Elky is no worse for the wear. 
Below is a link to the pictures I took while at the Bristol Bash 2002.





 





My wife and I had a great time, made some new friends
and saw some old friends too.





 





http://users.adelphia.net/~hlump/bristol2002.htm






cYa-





 





Herb Lumpp
1966 El Camino
ACES 3509, MCC 528
http://users.adelphia.net/~hlump/

Re: [Chevelle-List] shifter hump

[WCross9844]

I'll check my 70 tonite...it is an automatic and the shifter uses a cable 
that goes thru the "hump". I'll check to see if there is a long slot as you 
describe. (when I get home tonite). 

Bill C
Ct
70 LS6

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Re: [Chevelle-List] Pics from Bristol...

[Don]

Great Herb! Some really cool pics! Sounded 
like you had a good time, even with the rain.
Don

  I'm back and the Elky is no worse for the wear.  Below is a link to 
  the pictures I took while at the Bristol Bash 2002.
   
  My wife and I had a great time, made some new friends and saw some old 
  friends too.
   
  http://users.adelphia.net/~hlump/bristol2002.htm
  cYa-
   
  Herb Lumpp1966 El CaminoACES 3509, MCC 528http://users.adelphia.net/~hlump/

Re: [Chevelle-List] SBC Cam selection

[Keith Cooper]

Watch Out!. You can not just switch to 1.6 rockers on most heads. The
pushrods will be in a bind in the hole of the head. The pushrod hole in the
head has to be cut for clearance when you switch to 1.6 rockers for most
heads.
Keith Cooper

- Original Message -
From: "Dave Studly" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, October 22, 2002 10:59 PM
Subject: RE: [Chevelle-List] SBC Cam selection


> Brian,
>
> I'm no expert, but it almost sounds like you're splitting hairs.  You
> mention the car being a daily driver, so I'm gonna assume you're not drag
> racing it much.  Adding .015-inch of lift is going to be difficult to feel
> in the seat of your pants.  Have you thought about switching to 1.6
rockers
> instead?  If you have .440 lift now with stock (1.5) rockers, swapping to
> 1.6 rockers will take you up to .469 lift ( (.440 / 1.5) * 1.6).  This
also
> adds a few degrees of duration.  A *much* easier swap than a cam.
>
> I dont think you'll really want a cam with more than .470 lift and ~225
> degrees duration (@ .050") with a stock converter.  You should be able to
> get away with stock valve springs in all of these cases.  Don't quote me
on
> that last part, though.
>
> You have a pretty well-matched combo for low-mid torque.  Carb tuning
(using
> a dragstrip or dyno to verify your results) can make a noticeable
difference
> in power and mileage if you haven't done so.  It's not glorious like a new
> cam, but it can be just as rewarding in the end.
>
> As an aside, I was just at the dragstrip this past sunday and a friend was
> there with his 90's LT-1 Roadmaster station wagon.  He upgraded the
exhaust
> which killed the good low-end torque he had (motor is stock, except for
> slightly modded air box).  To remedy that, he changed the torque converter
> to one from a S-10 application (he estimated 2000-2100 stall, versus
> 1200-1300 stock -- no tach to truly verify these numbers.) and picked up
.8
> seconds in his quarter mile time and +5 MPH (it was also only in the high
> 40s, low 50s temperature-wise).  If you're not familiar with quarter mile
> times, that's a *big* improvement.  Getting the engine up into it's torque
> band quicker makes all the difference in the world.
>
> As another personal aside, I ran my quickest and fastest on Sunday with my
> 406-powered '70 -- 12.70 @ 107.  I was pretty happy about that.  If
there's
> one good thing about Ohio, it's low ETs in October!  :-)
>
> Torque rules!
>
> -Dave
>
>
>
>
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:owner-chevelle-list@;chevelles.net]On Behalf Of Brian Zack
> Sent: Tuesday, October 22, 2002 2:28 PM
> To: Chevelle List (E-mail)
> Subject: [Chevelle-List] SBC Cam selection
>
>
> What is the largest cam any of you are running in a daily driver with a
> small block 350. I have a '70  Chevelle Malibu with a  350 4-bolt main,
> cast pistons, 9:1 compression stock heads, edlebrock performer manifold
> edlebrock 600 cfm carb, 1 5/8" headers, and dual 2" exhaust. It also has
the
> stock stall converter and I think either 2:73 ot 3:07 gears ( I have to
> verify that) Right now I have a crane energizer 266H which is 266 duration
> and .440 lift. I am going to be changing to a larger cam and was wondering
> what max. size anyone might recommend. I was thinking of of the crane
> energizer w/ .467 lift or the crane energizer with .454 lift. But, I dont
> think the smaller one would give me that much of a difference. I think I
> would have to change my springs though and probably the converter. Has
> anyone used a larger cam and not upped the converter? I would assume it
> would probably hurt mileage and not have that great of low speed torque.
Any
> recommendations?
>
> Brian Zack
> '70 Chevelle Malibu
> mailto:brianz@;dpsabq.com
>
>
>
>
> -
> To Unsubscribe please visit www.chevelles.net/list.html
> To start a new topic, send mail to: [EMAIL PROTECTED]
>
>
> -
> To Unsubscribe please visit www.chevelles.net/list.html
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>



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