LS1TECH - Camaro and Firebird Forum Discussion

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- - What's my CR?? (https://ls1tech.com/forums/generation-iv-internal-engine/1451815-whats-my-cr.html)

89ROC-Z

Aug 3, 2011 12:55 PM

What's my CR??

What would be my compression ratio with a stock lq4, stock lq4 head gaskets, 70CC heads be?

Or...what would it be with stock lq9 pistons?

Thanks guys

89ROC-Z

Aug 3, 2011 09:37 PM

Anyone on the lq4 setup? I've found out that the lq9 set up will be 10.4:1 static compression

Pwebbz28

Aug 4, 2011 01:07 AM

Lq4 is about 9.4:1 and Lq9 is 10:1 Both use the same 317 head with 70cc chamber.

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