LS powered Duster, Abomination or Go For it!

mgoblue9798 said
Staying mopar will cost him more money than an LS swap?

I don't think so. Put a 5.9 magnum or LA 360 and go have some fun on the cheap.

If he already has 5.3, maybe. That will bolt directly to a GM o/d trans (that many here have swapped to) a set of conversion mounts, ….
Admittedly, I was really thinking of build cost.