5.2 Magnum into a '72 Scamp-tips?

Toss that mechanical pump BS and run the Magnum accessories with an electric pump and regulator. It's ten times better than the V-belt crap and mechanical pump and it's SO easy to find parts in the future.

Got Power Steering? If yes, get the B-van power steering pump bracket (it sits lower). You may need a power steering pump housing from a mid-90's Dak IF it hits your battery tray (It clocks toward the motor a little more). If your battery is in the trunk, run the truck PS pump bracket if you like. Your original PS pump should bolt to the Magnum bracket and pulley. Mine did (my donor was a '99 Ram).

Got AC? If so, you're set. Run the compressor and proper belt and carry on. If not, Do NOT run the cheesy belt mis-routing. It invites pulley slippage. March down to the dealer (or salvage yard, but good luck), and order the alternator bracket for NON-A/C Rams n' B-vans. (It repositions the idler pulley just enough to matter). It's spendy but you'll be able to remember what belt it is in 100,000 miles...ANY Ram truck or B-Van, with Magnum, No AC, 93-03!

Run the Magnum alternator, straight up bolt-on at this point. I run the output directly to the stud on the starter relay (WITH FUSIBLE LINK, natch), hook the fields up, and you're done. I even run the Magnum coil, via extended wires, and I got the Magnum cap adapter to run Maggie distributor cap n' wires. Pure cakewalk.