Whats my compression ratio? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69heavychevy · 01-15-2011, 06:26 PM

Hey guys, i was trying to calculate my engine CR and came up with roughly a 12:1. Didnt seem right so i'd figure i ask for some help.
Specs:
350 bored .060
felpro 7733pt2 HG .039 compressed thickness, 4.125 bore
stock 906 vortecs
standard rotating assembly

Thanks in advanced!

69heavychevy · 01-15-2011, 07:16 PM

the block has been decked, just not sure how much...im guessing however much they do on s standard rebuild.

jamesi20 · 01-15-2011, 07:31 PM

try this http://www.csgnetwork.com/compcalc.html

01-15-2011, 06:26 PM	#1
69heavychevy Registered User Join Date: Jan 2007 Location: Garland,TX Posts: 431	Whats my compression ratio? Hey guys, i was trying to calculate my engine CR and came up with roughly a 12:1. Didnt seem right so i'd figure i ask for some help. Specs: 350 bored .060 felpro 7733pt2 HG .039 compressed thickness, 4.125 bore stock 906 vortecs standard rotating assembly Thanks in advanced!

01-15-2011, 07:16 PM	#2
69heavychevy Registered User Join Date: Jan 2007 Location: Garland,TX Posts: 431	Re: Whats my compression ratio? the block has been decked, just not sure how much...im guessing however much they do on s standard rebuild.

01-15-2011, 07:31 PM	#3
jamesi20 Senior Member Join Date: May 2002 Location: NORTHEAST OHIO Posts: 493	Re: Whats my compression ratio? try this http://www.csgnetwork.com/compcalc.html



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