Ziggy,
I believe that any engine can be put in any car. I once saw a 426 Hemi in an Austin Healey (Bugeye) Sprite! However, It comes down to time, skill and money. If you have 460 engine already and the frame is set up for that, then go with that. It will make the job doable in a reasonable time frame. The Coyote engine is a beautiful piece, but the overhead cams make it massive.
Check these specs against the Coyote's:
http://www.hotrod.com/how-to/engine/...ne-swap-guide/
It will take a lot of cutting and rearranging to get the big Coyote motor in there. I considered putting one in my Arntz, but when I got out the tape measure and checked the engine bay, I realized that I would have to cut my foot boxes and inner fenders a lot! I decided to stick with the small block. You need room for air to circulate too, you know. In the old days, you needed a big motor to make big horsepower. These days, with advanced cylinder heads from AFR or Trick Flow you can make the same kind of power with a 348 ci Windsor engine. If you don't have an engine and really want to get the car running quickly, that's the way I would go. Having to fabricate stuff takes so much more time. Another thing to consider is how much horsepower do you really need? I spent a lot of money and time to get 500 HP and 533 FP of torque. The fact is that even on the racetrack, I can rarely use that much.
RS