I'm thinking 4.625 to 4.650 bore with close to 3.6 stroke and I have no idea on the rod lengths shruggy
I'm sure those motors never see below 8500 RPM at WOT after the clutch is let out until they let off the thottle shruggy


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