stroker engine balancing

Lighter pistons/rods ect. are better but the real factor is the crank.A forged crank is dense and has enough weight to internal balance with any available pistons.This is why 340s with forged cranks are internal balance even though the pistons are heavier than a 360s pistons,which is a external balance engine.Also most all cranks are made offshore and very similar in raw castings,its the finish work done here by the various companies that sets them apart.