Could use some expert Demon handlers

Hey Guys,

Just joined FABO and am now well into the classifieds that cover about every corner of the internet (for A body sales that is).

I've come across a listing for a 71 Dodge Demon, and I could really use some help in determining if the info the guy has in the listing is legit or not.

I was confused when i saw that he's posted that the car was originally a slant-six, and now has a 400 in it. Demons didn't come with 6's did they? Could he just be incorrectly advertising it as a Demon, and it's really only a clone build off a Valiant with a slant-six?

If so, would it even be worth it? The guy has already gone through the trouble of resizing the backend to 8 3/4, and has fitted brand new disk-brakes all around. The car has zero rust on it (originally from Cali, now in Texas). Basically, for $4000, it's my perfect car for a first crack at a resto.

Still trying to get a contact number so i can squeeze some more info out of the listing, but i would greatly appreciate if any of you A body fanatics or Demon-Slayers could give me a crash course on any of the options/engine types for the car.

Thanks,

Brendon