Originally Posted by Cab_Burge
I use those older Mopar 4.15 stroke cranks to make either 4.250 or 4.300 stroke crnakshafts by having them offset ground down to 2.200 rod jourbnal sizes and use BB Chevy type 7.100 long rods up
I would have the crank magged first to make sure it is not cracked and go from their scope


When I say the crank doesn't have much going for it, it really doesn't. In addition to the rear thrust surface being worn down (also been there repaired once), it had #3 rod bearing spun, plus, the crank is already .010" undersized on rods AND mains, the counter weights are approx. .500" larger diameter than most modern cranks and the rod journals are Mopar sized. Other than that, it's a pretty nice piece. By the time that I fixed all that and ship it both ways, I'll be into it for what, $600 (at best) and still have a old multi-time repaired, heavy crank. Not sure that makes sense?

Thanks, Brian