C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Camshaft question??

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Old May 1, 2009 | 02:56 PM
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Default Camshaft question??

Simple but important question...1988 L98 roller cam...the dots on the gears; do you line them up (6 and 12 o'clock) or do you set them both at 12:00? Thanks in advance!!

Mark
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Old May 1, 2009 | 07:20 PM
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Does not matter. 6 and 12 has cylinder 6 ready to fire, ( valves closed ), 12 and 12 has cylinder 1 ready to fire.
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Old May 1, 2009 | 08:57 PM
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I have always lined them up. I have built 28 or 29 engines, and never had a problem.
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Old May 1, 2009 | 09:02 PM
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Originally Posted by coupeguy2001
I have always lined them up. I have built 28 or 29 engines, and never had a problem.
not with the amount of engines i have built though...
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Old May 1, 2009 | 09:19 PM
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it does'nt matter, it does matter how the distributer goes in. Whether is 180 degres out. the crank rotates two times to the cam one time.

Last edited by rlane5; May 1, 2009 at 09:22 PM.
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Old May 1, 2009 | 09:46 PM
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Originally Posted by JackDidley
Does not matter. 6 and 12 has cylinder 6 ready to fire, ( valves closed ), 12 and 12 has cylinder 1 ready to fire.
Originally Posted by coupeguy2001
I have always lined them up. I have built 28 or 29 engines, and never had a problem.
Both ways are correct. But I'd never to a high performance cam install with out degreeing the cam (I learned this the hard expensive way a long while back)


I do the dot to dot mostly due to habit since the old harleys and other small engines I grew up wrenching on as a kid always seemed to have numerous timing marks on numerous gears to line up mark to mark .
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