stroker engine balancing

Bill.not the answer I'm looking for,but thanks anyway.Let me rephrase the question so maybe a more helpful reply will be sent.What con rod/piston assembly weights will various brands of forged 4.0" cranks support without adding internal weight or using external weights?Sorry if the question was not clear the first time.(insert smiley face here)Bob
Don't know bout you dismantler , but I need a simple answer. I got H rods I am looking at , a cast 3.58" crank, in a 340 block..asking, can I use flat top forged pistons without taking it to the machinist to balance. Would it be considered internally or externally balanced,?