OK- - - -that information would have been helpful a little earlier on. The pistons you listed should be fine, with the exception of the fact that with every engine I've ever bored (several hundred of them) I had the pistons on hand before I ever made the first cut on the block. Each cylinder is bored to the exact diameter of the piston that goes into that hole, and the clearance is added with the hone. That accounts for any manufacturing tolerances between individual parts. It's the way racing engines are built, and it's also the way a well-qualified machinist does things.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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