L98 Corvette Heads
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Supreme Member
Joined: Mar 2001
Posts: 5,144
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From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
L98 Corvette Heads
How much lift can stock L98 aluminum heads take?
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Joined: Nov 2001
Posts: 1,526
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From: Cleveland, OH
Car: '87 Camaro LT
Engine: 355 L98
Transmission: T56
they have screwed in studs which is good but the stock springs are only good to about .460". I just put in an lt4 hot cam (.492 lift) in my vette l98 and new springs that are advertised good to .570 but i wouldn't trust them over .520. I also had my valve guides and the collars on the spring cups milled .050 to clear the retainers.
Supreme Member
Joined: Nov 2001
Posts: 1,526
Likes: 0
From: Cleveland, OH
Car: '87 Camaro LT
Engine: 355 L98
Transmission: T56
here are the springs i got, the competitors "2300". they are standard diam. so you don't have to mill the spring seats:
http://www.competitionproducts.com/page24.html
http://www.competitionproducts.com/page24.html
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