Nope.
Only the stroke.
I see clearance for the OHC pistons was .003-.005. My Pistons are .004.
They run quite in mine. Far lighter than stock too. That also makes it easier on the rods. If hotroding the OHC, consider using Chevy rods, they are made of better material.
Tom
Deck Height = 9.150
Stroke = 3.53
cc 1bbl head = 80
cc 4bbl head = 65
I hope this is what you are looking for.
