hi,some year ago i pick some cranks from a close mopar dealer ,the one at your left(front view) is a 69 440 crank but the right side crank is the same spec but he have a 8- 1/2" bolts flange and 3/4" longer near the flange(see pictures)and have a no lip on the flange like the 440,what crank is this do you think,thank you