LS1TECH - Camaro and Firebird Forum Discussion - need some compression figuring help

LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)

- Generation III Internal Engine (https://ls1tech.com/forums/generation-iii-internal-engine-5/)

- - need some compression figuring help (https://ls1tech.com/forums/generation-iii-internal-engine/429541-need-some-compression-figuring-help.html)

69firebird

12-30-2005 11:59 PM

need some compression figuring help

HI,

I have a flat top piston and 5.3 heads what kind of compression am I at?

and can I use a thicker head gasket to lower the comp some?
THanks
ed
firebird455@gmail.com

joshp14

12-31-2005 12:07 AM

how big are the chambers on the 5.3 heads and what is the size of the gasket compressed?

69firebird

12-31-2005 10:33 AM

the chamber size is what ever the stock 5.3 is which I think is 62 but Im not sure

the gasket is a felpro that I have now
thanks
ed

joshp14

01-01-2006 12:53 PM

With .002" piston to deck height and a .040" compressed gasket you will be around 11.1 CR. With a .050" compressed gasket you will be at 10.8 CR. Those are both with the 62cc chambers you said above.

All times are GMT -5. The time now is 05:01 AM.