If you are using a stock 360 cast crank turned down....probably going to need mallory metal even with light weight scat i beam rods and kb 107 pistons...
last 360 cast crank I assembled...light weight i beam rods 585 grams....and light weight Ross pistons 484 grams...still would need mallory metal to internally balance....or you can externally balance it with a 360 damper and a B&M weighted flexplate....
