LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Compression test results

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Old 12-27-2004, 01:37 PM
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Location: J-ville,NC
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Compression test results

Ive been having some real issues with my stroker so I did this check to see what would turn up

All cylinders were within 5 psi of each other (180 psi) except for three
cylinders.

3 205 psi
5 150 psi
7 160 psi

I dont remember if the tolerance is 10% or 20%. I think its 10%. If it is 10 I seem to just be over the tolerance with these three cylinders. I measured each cylinder three times and they were very consistant. What do you guys think? Would valve lash have to be set extremely wrong to cause this kind of difference?

Last edited by wicked_95z; 12-27-2004 at 01:40 PM.
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