I just got his from Robert A. Jones from Scat Cranks

"That is one heck of a motor. The inline six motors are a smoother motor with the 120 degree power pulses but your going way beyond what a cast Iron crank was ever designed for. Since it is turbo that helps a lot but still If I had the budget I would billet it. Saying that I don't make a billet for your motor but if you call Moldex 313-561-7676 they can"

Edy