Wrapping my head around balancing

pistolpete1934 said
Sorry for another post about balance but i have to get it right in my head... my build will be an 01 magnum 5.9. Stock cast crank, either stock rods or Scat's probably bushed for floating pins, Wiseco or JE forged pistons 30 over and whatever bearings the crank needs. As I am changing the weight of the internals and therefore require an internal balance, am I correct in thinking that I can use the dampener and serp pulley off of a 5.2 magnum as well as that engine's flex plate because that motor is internally balanced? Also use a neutral balance converter? I know all the pieces will have to go to machine shop for balance. Thanx

A stock 5.9 is NOT (factory) internally balanced!!! Are you saying this engine had previously been "built" and internally balanced by a machine shop? In either case, tho, changing ANY weight will change balane, AKA changing rods or pistons

On the other hand just how wild is this thing? Many of those pistons may be designed for "stock like replacement" even though they are not necessarily same as factory weight. If this is a 6K/ under RPM street car you may be worrying about nothing.