Max lift for aluminum L98 heads?
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Joined: Jan 2005
Posts: 2,716
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From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
Max lift for aluminum L98 heads?
Anyone know the Max lift for Aluminum corvette L98 heads?
I have 1.6 RR's and I am just trying to find my cam limit.
Thanks!
I have 1.6 RR's and I am just trying to find my cam limit.
Thanks!
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Joined: Sep 1999
Posts: 7,072
Likes: 13
From: Philly, PA
If you're talking about original Vette heads off the assembly line they're not much different than most factory SBC head- things get dicey over .470" The bottom of the retainer hits the guide seal beyond that point.
If you're talking about later ZZ4 heads (that used basically the same heads) that could be a whole different can of worms.... there were significant updates made to the heads in later ZZ4 engines, as reported by other board members, including upgraded springs, retainers and such that allow significantly higher lift.
If you're talking about later ZZ4 heads (that used basically the same heads) that could be a whole different can of worms.... there were significant updates made to the heads in later ZZ4 engines, as reported by other board members, including upgraded springs, retainers and such that allow significantly higher lift.
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