Troy can u get weights of current rods pistons and pins? You will have to compare to whichever ones you shop for.
I wonder if a crank turned .010 would cause much weight difference?
Up here a rebalance is damned pricey...$600 min.
The factory weight for a 71 340 connecting rod without the rod bearing shells is 758 gms. The factory weight for the piston is 719 gms. The wall thickness of the piston pin matters. I'd be interested in the weights of all the con rods. I heard chrysler did a good job of balancing their engines.
Whatever amount of steel that is removed from the crank journal is replaced by the bearing shell.