Cast crank 340 weight ?

360 ,(Non magnum), 19.79 inch/ ounce, 383, 400 440 cast crank 12.9 inch/ ounce, 440 heavy rod 6.5 inch/ ounce and the 340 cast crank is 4.22 inch/ ounce. these external balances would then need to be positioned at the appropriate location to be clocked correctly.