Originally Posted by polyspheric
If recycling a high level (fuel, etc.) crank: it probably has the older 8 bolt flange
Both of them have that old 8 bolt 1/2 ich diameter bolt pattern that the flywheel centers on the outside crank register, not the ring in the center like the1962 and later Mopar V8 do, adapters needed to run the later converters up wrench grin

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