being your starting from "scratch" can't go wrong with a 408!! with a warranty! rest of the parts mare somewhat reasonable beside the 8 3/4 rear...
QA1 K frame with rack and pinion steering
and up graded brakes
solid modern upgrade...
just keep in mind were not fords or chevys our stuff takes more time to find and $$$
IMO:welcome::lol:
Chrysler Compatible Crate Engines