I have a couple of 403 specific crankshafts. I can ship via Fastenal, unless you know someone coming down to our Winter racing paradise. I'm near Bradenton Motorsports Park, Orlando Speed World and can hear the cars at Sebring Raceway from my back yard. Please let me know if you're interested. Thanks, Bob.
PS: The casting # that you referenced is actually a late model, lightweight crankshaft. I do have those also, if interested. Please let me know. Thanks, Bob.