4BT's are also extremely heavy if I remember right, I was looking at putting one in a 1946 WDX dodge power wagon project awhile back. They're great for torque and good horepower, but if you do stuff like jump your ride at all, be prepared to be making trips to the body shop for a tweaked frame. I'm already very leery of my VX with this heavier engine and the winch and winch bumper up front.