S stihl-066 New Member Jan 4, 2006 90 0 0 Jul 19, 2006 #1 Jul 19, 2006 #1 I am going from 69cc heads to 58cc heads. My compression ratio before was 8.4:1. What do you think it will be at now.
I am going from 69cc heads to 58cc heads. My compression ratio before was 8.4:1. What do you think it will be at now.
bill302 Active Member Nov 2, 2005 2,131 1 46 alabama,gadsden Jul 19, 2006 #2 Jul 19, 2006 #2 http://www.csgnetwork.com/compcalc.html
S stihl-066 New Member Jan 4, 2006 90 0 0 Jul 19, 2006 #3 Jul 19, 2006 #3 Thanks but I dont know what all of my numbers are. It is a stock 302. So I only know the bore and stroke and the cc's
Thanks but I dont know what all of my numbers are. It is a stock 302. So I only know the bore and stroke and the cc's
