I always put the truck up high, and put the hoist arm right down between the heads (intake off) without the hook and the chain tight to each head diagonally. You want the angle to be close to the angle of the body (whatever that is). I have even ratchet-strapped the block to the arm. What a swap: V6-OD to V8-727. I used an '89 pump module with the drain tube and hooked my fuel line to that. I can also power the pump to empty the tank! The length of a V6/OD is almost the same as a V8/727. Dipstick tubes and a shifter bracket/rod was about it. After driving it I had to re-install the computer (eeek!) to use my dash or else swap it out for the old speedo with a cable. Just rewired all of it with a chrome box, regulator and the yellow "start" wire into an old type starter relay. It's a '94 with an '87 360-4 barrel, 340 cam and old TQ ('cause I like them). The '70's B van may have the engine further back to allow it to go out the door so... I have only done '82 and up.

All Mopars ROCK!