new dart owner needing help.

A runable 318 or 360 shouldn't be too hard to find. How far are you from Cheyenne or Ft Collins?

An 8.75 in a 72 Swinger with an auto? It's possible if the car was ordered with the Sure-Grip (POSI is a GM term, use it and you will be mocked). If it is factory it probably has 3.23 gears or perhaps 3.55's. I would guess it's a car ordered with a towing package. As for the spool?!?

There has got to be somebody on eBay who will give you lots of cash for the Chevy engine. Just don't ask us how to put one in a Dart...