The bad thing about all RB blocks, except the aftermarket race blocks, is the thin main webbing down scope they crack and you won't know that until it fails or you see on a maintenance check shock shruggy
if you're shooting for 700+ HP on gasoline, race or pump, don't use a stock 440 block to build it with tsk twocents

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)