340 block with 360 crank

Sounds like you own a couple.
I've had many 350s but never a 383. Down here in S.Texas mopars are a little rare. Chevys are cheap and abundant. The yellow Barracuda in my avatar had to be shipped in from Arizona. I had a Barracuda back in the 70s and always wanted another one so I found the yellow one and bought it.