Change of plans. I’m forced to do it.

Usually when the deck is cut under 920 you will need to use GM size pins to keep the pin under the rings on a stroker piston. So the crank will have to be GM size for affordable rods. My GM rodded 421 made 679 @7200 at the crank but it didn't last long. My 416 was 4 inch crank , Mopar size rods and Diamond pistons. Indestructible so we freshened it.

But now my son is tearing it down and is now going with a Light weight knife edged 4 inch crank, Aluminum rods and ross 13-1 pistons. A big question mark on durability but its my sons call.

But the Diamond piston 416 motor did treat us good for 8 yrs. of hard runs.