putting a ford 5.0 in a 72 Dart

Is this not a site to ask questions? maybe I misunderstood what its all about.
Don't get all offended cause you go to a Mopar site and ask about a ford swap and get push back. I highly doubt anyone here has done it, so you'll probably have to tell us how it go's.

There is a Duster on Youtube were the guy swapped all 3, Gen 3 Hemi, LS and a Coyote into the Duster, look it up probably help.

Like most unconventional swaps, oil pan and exhaust usually biggest roadblocks plus whatever cutting welding fabrication is needed.