Mark,
That site has exactly the information you are after, here's a snippet from
it:
-----------------------
Here's what I've had in my 510 for the past 6 years and in my Coupe
before that and before that a red 510 (My friends.)
Early L20B block
Z24 crank (with .500") cut off each counter weight with no balancing
problems
L20B rods cleaned up and shot peened
stock Z24 89.00 mm pistons cut down slightly on top (can't remember the
amount.)
L20B (U67 open chamber head, ported, stainless big intake valves, Z
exhaust valves.) Jim Wolf/Schneider cam
dual 44 Mikinis, custom made tri-Y header
Dynoed at 135HP, 147 Ft Lbs Torque to the wheels (~166 HP, 182 Ft Lbs
torque to the flywheel) This engine makes great power between
2,800-5,700rpm.
The trick to making the crank and rods clear the inside of the block.
You have to grind enough material where the counter weights hit to allow
a .016" feeler gauge to pass. The crank has to be clearanced first then
each rod (with piston on it,) one at a time until the feeler gauge fits.
Some grinding on the main oil gallery must be done and if done carefully,
shouldn't be a safety issue.
-----------------------
If you don't get it, take the crankshaft and block to a machine workshop and
say "Fit this crank into this motor please" :) Note that he refers to the
'Early L20b block' indicating that they probably got the good hard-wearing
Jap castings in the USA too. We had a 'percent local production' regulation
or law or something so the later blocks were cast in Australia by Nissan,
and they are supposedly crappy. If you use L20b conrods you will need to
get the Z24 pistons milled about 1mm, and go a crazy 89mm bore. This would
give you a genuine 2.4L but it won't be easy to do!
- Tom
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of mark krawczuk
Sent: Saturday, 24 February 2001 11:54 PM
To: [EMAIL PROTECTED]
Subject: Re: Z2.4 in L20B?
hi,
could any one please tell me exactly how to go about putting the z2.4 crank
in a l20b?
some one put me onto a site ,it was pretty good , but not exactly what i
needed.
this is what i have already done:
l20b block bored 1mm
crank tunnel line bored
deck surfaced
after i had this ALL done i found i could get a z2.4 crank.
what do i have to do to make it fit into this block?
i am also running a fj20 turbo .63 housing and fuel injection.
thanks, mark
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