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#6
09-20-2022, 07:28 AM
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As posted your no where near 9.4 to one compression.
I come up with 8.57 to 1 by these numbers. 6X heads with valve job and milled .020"= 91.67 CCs. Head gasket = 9.7CCs Piston notch volume ( assuming 4 notches) =6.7 CCs .010 deck clearance = .1352 CCs Ring land volume= 1.5 CCs Cylinder Bore @ .030" over=51.72 cid, converted to CCs=831.1 CCs With this I assumed no Intake valve chamfers in the top of the Bore which at .030"would still be atleast 2 CCs. You need to pick your Cam with this compression ratio in mind.
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