I've tossed up the idea of swapping everything from a 340 Mopar, SBC, BBC, Coyote, LS, 5.4L CNG, to even the engine out of my 08 GT500.
Transmission swap options included A833, TH400, or TH700R4. What I really want is a Lenco or Jeffco.
I guess it is all fair game for me. I like the 05-09 S197 body style, but all it really does is hold up the paint. My GT500 is different, I would only consider a later AL 5.4L, AL Coyote, or leave it alone.
P.S. I'm dreaming more and more about an LS swapped Prius EV.