So the OP will understand: Do you mean you want it balanced to a much tigher tolerance than factory (even if it is stock weight parts)? Or are you recommending he go to lighter pistons/rods and rebalance for that to get to lighter rotating weights?
Factory balance job wasnt the best. You'll have less wear the better the balance.
Lighter rotating assembly is preferred to begin with, but not a have to. Trw forged weigh a ton and rev 8000 rpm in g stock.
You can do the factory match weight pistons, but you wont be any better than 1960.... and that great for a old farm truck but bad for it being 2018.lol
