I have weight the pistons with rings and rods. The gap is 8grams. The lightest is 1392 gram and the heaviest is 1400grams. Is this to much difference for a good balance?
The nit picky guys want 1 to 2 grams,on a custom high dollar race build. Compared to 1970's 360 stock rod & piston combination's,that's seems lighter. Put it back together (with bearing clearance's checked),run it. You're safe to 425-450 h.p.,about 6200-6500, running a new stock pump & high volume pan,helps here.(Kevco,looks nice).