Is a L98 head same as a ZZ4 head?
Thread Starter
Senior Member
Joined: Mar 2003
Posts: 523
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From: Marion, Iowa
Car: 92 Camaro
Engine: ZZ4 Crate Engine w/Hot Cam
Transmission: Rebuilt 700R4 with Transgo and MW 3
Axle/Gears: 3.73 Eaton Posi
Is a L98 head same as a ZZ4 head?
I have a ZZ4 and find all kinds of info comparing so and so manufacturer's head to that of the corvette L98 head. I've heard these 2 heads are essentially the same. Anyone know for sure?
I want to upgrade my heads to ones with bigger valves and it would be nice to know I have the equivilent of some production head.
Thanks.
I want to upgrade my heads to ones with bigger valves and it would be nice to know I have the equivilent of some production head.
Thanks.
Supreme Member
Joined: May 2000
Posts: 2,963
Likes: 3
Car: 1982 Z28
Engine: LS1
Transmission: T56
Same casting as the old Vette L98 aluminum head, but with nicer valvetrain parts.
You can get details from the GM catalog:
http://www.gmgoodwrench.com/perfpartsjsp/home.jsp
Check part# 12556463 under Cylinder Heads:
http://www.gmgoodwrench.com/perfpart...373§ion=ep
You can get details from the GM catalog:
http://www.gmgoodwrench.com/perfpartsjsp/home.jsp
Check part# 12556463 under Cylinder Heads:
http://www.gmgoodwrench.com/perfpart...373§ion=ep
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