The engine is at the shop right now.
I don't think the pistons were in the hole at all but I didn't measure; I just put a straightedge on the top and looked for light.
As I have read, it's not uncommon for the '71 and up 455's to be at or very near the top?
factory 4bbl engine, YY I think. I didn't notice any chamfers at the deck.
yes, screw in studs.
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