Bagman Posted January 30, 2023 Share Posted January 30, 2023 Hi all, I noticed in the engine rules that engines with 9.5 pistons can mill the head to .891 in thickness using the stock head gasket. Is this a common practice with no clearance problems?what compression ratio does this achieve? Any response will be appreciated thanks Bagman Quote Link to comment Share on other sites More sharing options...
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