I don't buy that it's benificial at 700 and above. By the way, Walt, that's a good look'n 1970 Hot Rod! mike
--- Geoffrey Barnett <[EMAIL PROTECTED]> wrote: > Dennis, > it depends on the skill of the person doing the > grinding , > any gains in low lift flow will be a measurable gain > if a person goes wild > and makes the ports huge it will kill air speed at > normal engine speeds as > well as drivability,fuel consumption ect. ect. > so yes there are gains that could be made how good > is the person doing the > grinding > is the real question. > Geoff > right foot engine shop > ----- Original Message ----- > From: <[EMAIL PROTECTED]> > To: "The Chevelle Mailing List" > <Chevelle-list@chevelles.net> > Sent: Friday, February 04, 2005 3:14 PM > Subject: Re: [Chevelle-list] Porting heads. > > > > Dennis, > > Depends on the application(Pure race looking > for the last .01). > > When the 2.19 or 2.25 and 1.88 valves were put in > hopefully they made > > a plunge cut down into th ebowl area. If they did > I would just blend > > it in if they didn't. Outside of that you would > be chasing small > > gains for larger money. Most large oval ports > with a plunge cut and > > larger valves flow very well. > > Walt > > http://www.personal.kent.edu/~wbainey/CHEVELLE.htm > > > > ----- Original Message ----- > > From: [EMAIL PROTECTED] > > Date: Friday, February 4, 2005 4:05 pm > > Subject: [Chevelle-list] Porting heads. > > > >> Do any of you guys know how much horse power > there is to be gained in > >> porting a set of heads? I have a set of oval port > cast heads off > >> of a 454 > >> that already has had the over sized stainless > valves installed. I'm > >> putting this 454 in my 68 SS Chevelle. It's got a > 400 turbo trany > > with > >> with 308 gears. Just wondering if it's worth the > extra cost while > >> I have > >> the engine apart? Thanks ahead for any help you > can give me on > >> this....Dennis > >> > >> > >> > > > > > > > __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail
