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#1
01-23-2020, 10:52 AM
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Your Pistons should have part number L2359F > .030 on the top, which would have a valve notch volume of 6.7 CCs.
The most commonly used Fel Pro head gasket has a volume of 6.4 CCs. Does your Block have Intake valve chamfers on the deck surface? Many blocks that came with 2 bbl heads did not have the chamfers but to nail down your compression you need to know that and the deck clearance even if it's only .010" If your shooting for a 9.5 compression then you need a total CC volume above the piston at TDC of 100 CCs by my math. Basically with your .030" over 455 every change up or down of 5 CCs from 100 CCs will change your compression by 1/2 a point.
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