454cid
Sooper Pooper
I have a 6.5 Opitmizer with all of the reliability goodies and some upgrades. That will be the initial stage. The first stage will be to extend the frame for the crew cab and swap everything from Pearl, our 2000 K3500 dually into the 3500hd chassis. It will stay 2wd at that time.
Oh, so you don't' even really need a good body. I wondered what you would do with Pearl.