Started on the 72 swinger

Nice car . I was wondering what engine are you putting in the dart?
I bought a 1972 duster V8 front k frame with welded on washer and with Kelsey Hayes disc brakes for $300 at Carlisle three years ago to use and I have a 1972 340 I traded a shot gun for that I had turned into a 416 stroker I’ll be putting into it.