74 Scamp gen 3 swap help

Welcome to FABO! The GenIII Hemi fits in an A-Body engine bay just fine. It's tight, but there's room. Yes, you can use a 727 with the conversion flex plate, and I think? you have to use a spacer between the block and bellhousing. I put a 5.7 Hemi out of a 2006 Wagnum in my 70 Duster. I used a 73^ spool mount V8 k frame, with TTI mounts and headers. TTI told me up front that my AC compressor would not fit. I made it fit by re-engineering the drivers side motor mount and moving the factory motor mount saddle on the k frame. Dig WAAAAY back in this GenIII forum and look at the post I made about all that. I used the Milodon pan, pickup, and windage tray. I don't have my car running yet, and I'm still on the fence as to whether I'm going to use a Hotwire harness, or one from Bouchillon. If you want PS on your car with a stock k frame, the Borgenson box is your only chance....and be sure to ask TTI about headers for THAT box before purchase. I ordered my headers raw, so I could beat on them if needed before I got them coated.