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I'm seeing a pattern here...

FWIW, the pistons stick out of the deck .002", so quench will be .038" w/ a typical composition gasket.










Maintain your quench and use other methods if need be to lower comp.

Chamfer the bores around the intake valve at the block and the head, if need be.


As far as the effective perimiters of quench,

Is it incremental or is it on/off

KB pistons engineer John Erb implies its off after .060

I think its a little bit of both, But from the words of a old Engine guru,


"If your building from scratch, make maximizing the quench your number One priority toward achieving compression and avoiding Detonation"


mike