Piston choice for Edelbrock Heads?

no. I don't now why they say "Must use...." Do the math. A .002 is nothing for piston operation. Clearance is near nothing. If you want to be exacting, this you should know. But when the engine block goes to the machinest, measuring up the block, rods, pistons, etc.... should be part of the deal.

I don't see .002 being a problematic factor.