Sweet success!
The goal was to have the quench pad protrude .110" above the block surface because the flats in the cylinder head are all machined .110" deep. This would give a piston to head clearance of whatever cylinder head gasket thickness we select. This one measured .109" above the block deck. It looks as if it may be more than .109" but for a visual reference the head locating dowel is .250" in diameter.
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