Quote:

I read about hemi rods and 451 pistons, but not sure what pistons would work for that combination.





this will not work , first the wrist pin is different ... hemi 1.031, B 1.094 .... , second the 451 piston is 1.320 CH , you need a rod that is 6.985ish to get it near zero , the hemi rod is 6.860ish.

diamond semi custom is you best choice , you get it exactly where you want it and don't have to cut the bleep out of the block , heads and intake ...