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I'm building a new engine and trying to decide on heads. Whats the deal with B1 heads with the moved centerline? How about the Indy 572-13 heads?

The B1 with the moved centerline heads are for the bigger bore spacing blocks, not the stock blocks, I think Call Koffels(419-433-4410) and ask them

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