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To begin with you should ALWAYS give us the year of your car. It makes a difference. Older L98 had standard cam, newer had roller cams.
You will get more out of your engine if you have a roller cam. But anytime you change the came from stock to some more radical, you will need a custom chip.
I really liked the Lingenfelter 74211 in my ZZ4 roller block. Idle very nice but when you got on it...she kicked in about 2000 RPM and kicked ***.
To begin with you should ALWAYS give us the year of your car. It makes a difference. Older L98 had standard cam, newer had roller cams.
You will get more out of your engine if you have a roller cam. But anytime you change the came from stock to some more radical, you will need a custom chip.
I really liked the Lingenfelter 74211 in my ZZ4 roller block. Idle very nice but when you got on it...she kicked in about 2000 RPM and kicked ***.
Sorry it is a 91 vette where can I get this chip and do I have to get work done on the heads for springs
Comp Cam 08-501-8 is a mild upgrade cam. Improve the air intake as well as the exhaust. Add roller rocker arms, use a Hypertech coil and bump up to 24lb Bosch injectors with 8mm wires. No tune necessary. My car idles at 700 rpm's and in gear is 600 rpm's. Never any changes perfect running engine. You could go 08-502-8 and 1.6 roller rocker arms but I have no experience with this cam.
Last edited by C4in mesa; May 10, 2014 at 01:15 PM.
...and do I have to get work done on the heads for springs
That depends upon the cam choice. Higher lift requires more spring tension as well as assurance that you do not get spring coiol bind at max lift.
Comp Cams has very good tutorial on this subject and very easy to comprehend.
If you do need head work it's time to get the heads ported with larger performance valves.
Comp Cam 08-501-8 is a mild upgrade cam. Improve the air intake as well as the exhaust. Add roller rocker arms, use a Hypertech coil and bump up to 24lb Bosch injectors with 8mm wires. No tune necessary. My car idles at 700 rpm's and in gear is 600 rpm's. Never any changes perfect running engine. You could go 08-502-8 and 1.6 roller rocker arms but I have no experience with this cam.
Do you think this cam would work well with a 90 tpi L98 stock intake with 1.5 roller rockers has long tube headers catless magnaflow exhaust and runs 13.1 at 106 in the quarter right now with the wrong converter installing an 2400 stall converter this winter and has 3.07 rear gears
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Originally Posted by Chevyguy168
... a 90 tpi L98 stock intake with 1.5 roller rockers has long tube headers catless magnaflow exhaust and runs 13.1 at 106 in the quarter right now with the wrong converter...and has 3.07 rear gears.
Does this quarter-mile run downhill, by any chance?