Crate Engine question?
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 5,808
Likes: 1
From: Sierra Foothills California
Crate Engine question?
My '91 has 126K miles and the intake has a small coolant leak (6 hrs labor) I'm considering a GM crate engine replacement. Has anyone had the experience? ZZ3 perhaps? I'm in Ca. so I need to keep the smog legal, and use the same intake etc.
Regards, RB :confused:
Regards, RB :confused:
Team Owner
Joined: Sep 2001
Posts: 62,119
Likes: 1,725
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Crate Engine question? (Vettman 1)
do you want to modify the car, i.e. more HP, or do you just want something that will get you around with about the same power
Racer
Joined: Sep 2001
Posts: 396
Likes: 0
From: simi valley ca
Re: Crate Engine question? (Vettman 1)
we put the gm 300 Hp in my brother's 86 and he has no problem passing the
smog test. we just recently updated it to 1.6RR and 52mmTB. runs much better. he is scheduled for another smog test this month, so hopefully
the new mods didn't affect the emmisions that bad. . ( i think GM
replaced the zz3 motors w/ the zz4. check out the tech area of the forum, a guy posted some info about stroker kits (from chevyengines.com ;i think) pretty good prices too)
good luck
smog test. we just recently updated it to 1.6RR and 52mmTB. runs much better. he is scheduled for another smog test this month, so hopefully
the new mods didn't affect the emmisions that bad. . ( i think GM
replaced the zz3 motors w/ the zz4. check out the tech area of the forum, a guy posted some info about stroker kits (from chevyengines.com ;i think) pretty good prices too)
good luck
Drifting
Joined: Aug 2000
Posts: 1,521
Likes: 0
From: West Islip New York
Re: Crate Engine question? (Vettman 1)
You might want to consider a partial block. You could get either the L98 replacement partial or a ZZ4 if you're going to need the extra beef on the lower end.
I bought the replacement partial for my 89, but then installed the ZZ4 valve train, CAM and other goodies along the way.
The crate engine had too many pieces I couldn't use to keep the emissions.
I bought the replacement partial for my 89, but then installed the ZZ4 valve train, CAM and other goodies along the way.
The crate engine had too many pieces I couldn't use to keep the emissions.
