I ran into that whole debacle when I did the swap. I had all the LA accessories for the Dart, and swapping it to a Magnum presented a few unique issues.
I had to get rid of the Maggy timing cover, water pump, and accessory cradle, then I bought a March billet pulley and bracket kit to make it all bolt up right.
So, as the car sits now, I'm running an LA water pump, Alternator, and PS pump on a Magnum engine.
It was a complete bolt on setup once I figured out what needed to be done.
