Pistons!
My pistons finally came in from Butler. Heat barrier top coating and anti-friction skirt coating. LS ring pack (1.2mm,1.2mm,3.0mm)With the 94cc Edelbrock heads that SD Performance is doing for me ( 325 cfm with 5/16” stem Manley 2.180” intake valve and a custom 11/32” stem Manley tuliped 1.740” exhaust valve along with small dia. dual valve springs to further reduce weight and T-washers installed) and .056 Cometic (Luhn) head gaskets we'll be right around 9.15:1 - 9.20:1 compression. Rotating assembly went off to the machine shop for balancing today.
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1964 GTO
501, Edelbrock Heads NA, 3460 lbs.
9.76 @ 137mph
1971 Trans Am Lucy Blue, 11.56 @ 115
1966 LeMans. 462, SD prepped Kaufman D ports. 11.90 @ 112
1976 Trans Am twin turbo 462, SD Edelbrock heads 8.50@159
2009 G8 GT
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