compression ratios... March 15, 2005, 08:19:12 PM i googled it up, and could find jack schit on what i was looking forwhats the compression ratio for an SO 5.0 with E6 heads, and the compression ratio for an HO with E7 heads? Quote Selected
Re: compression ratios... Reply #1 – March 15, 2005, 10:23:45 PM The '86 HO was 9.2, don't see why it would be any different for a SO... '87-up HO is 9.0, the .2 drop is because of the valve relifs in the later pistons, as both HO and SO heads have a 64-65cc chamber. Quote Selected
Re: compression ratios... Reply #2 – March 16, 2005, 12:21:57 AM Hot Rod magazine Feb'87 states 8.9:1 compression ratio for 87 Tbird Sport in a comparison article vs Turbo Coupe. I read too much! Quote Selected
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