LS1TECH - Camaro and Firebird Forum Discussion - ET 215's. Help calculating my compression

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ceo44

Feb 14, 2006 06:34 PM

ET 215's. Help calculating my compression

Hey guys, need some help. There have been no mill to the heads yet. I have .075 out of the hole using .045 cometics. I verified my clearance and I have alot on the intake and about .192 on the exhaust. What would my current CR be? If needed, how much could I mill and be safe without fly cutting. The cam is a monster and I can't believe I have this much clearance available. Thanks in advance!

SlickVert

Feb 14, 2006 06:53 PM

What cc are the heads?
What is the bore of your gasket?
Do you mean your pistons are out of hole .0075?
Do you have any valve reliefs?

ceo44

Feb 14, 2006 07:00 PM

What cc are the heads?
62cc

What is the bore of your gasket?
3.90 (stock bore)

Do you mean your pistons are out of hole .0075?
Yes

Do you have any valve reliefs?
No

SlickVert

Feb 14, 2006 07:17 PM

Quote:

Originally Posted by ceo44

What cc are the heads?
62cc

What is the bore of your gasket?
3.90 (stock bore)

Do you mean your pistons are out of hole .0075?
Yes

Do you have any valve reliefs?
No

I came with 11.2060
Bob

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