No man, They are custom made pistons, I gave the piston manufactor the spec of my rod lenght, deck height, cc of chamber and head gasket thickness and got a piston designed to get a 9.5 to 1 ratio. Jeez I put pics up for peolpe to enjoy and get my head bit off. I got too much time invested and money not to waste by goofing up on a compression issue!!!!!
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