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Generation III Internal Engine 1997-2006 LS1 | LS6
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Cylinder Compression?

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Old 07-28-2003, 09:02 PM
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Default Cylinder Compression?
When doing a compression test on the cylinders, what should the psi be per cylinder?

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Old 07-28-2003, 09:07 PM
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Default Re: Cylinder Compression?
I have heard....
160-180 normal for a street car
190-210 for an agressive street car

My car was tested 4 weeks go and yeilded 205-215. Really need more info such as cam specs and compression ratio.
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Old 07-28-2003, 09:33 PM
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Default Re: Cylinder Compression?
Stock 5.7L block & heads w/ G5X-2 (232/240 .595/.608 112LSA).
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Old 07-28-2003, 09:43 PM
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Default Re: Cylinder Compression?
I can't really make and educated guess but I would assume 180psi.
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