LT4 Hot cam kit compatability
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Junior Member
Joined: Apr 2001
Posts: 83
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From: Blacklick, Ohio, USA
Car: '91 RS
Engine: 5.7 tbi
Transmission: 700r4
LT4 Hot cam kit compatability
What parts (rockers, springs) of the kit are compatible with SBC earlier than LT1(LT-1). I can never keep that straight.
Supreme Member
Joined: Jan 2001
Posts: 1,411
Likes: 3
From: Rock Hill, SC
Car: 1999 Pontiac T/A Firehawk
Engine: ***'s Engine
Transmission: T56
I don't know off the top of my head but I can tell you the cam is compatabile with gen I factory roller blocks and the springs are compatible with Gen I heads when machined (ZZ4 heads are AL L98 heads with LT4 springs).
Thread Starter
Junior Member
Joined: Apr 2001
Posts: 83
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From: Blacklick, Ohio, USA
Car: '91 RS
Engine: 5.7 tbi
Transmission: 700r4
I guess what I need to do is id the heads that were used on the remanufacture.
For all I know they are L03 tbi heads from the factory. They are center bolt though.
For all I know they are L03 tbi heads from the factory. They are center bolt though.
Thread Starter
Junior Member
Joined: Apr 2001
Posts: 83
Likes: 0
From: Blacklick, Ohio, USA
Car: '91 RS
Engine: 5.7 tbi
Transmission: 700r4
As an alternative, how about the LT4 production cam?
I have a remanufactured engine in my '91 RS and identifying the heads may be a problem.
How would I go about identifying the type of head, rockers in it?
I'm not afraid to pull the valve covers to look around.
I have a remanufactured engine in my '91 RS and identifying the heads may be a problem.
How would I go about identifying the type of head, rockers in it?
I'm not afraid to pull the valve covers to look around.
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