Converting 2002 Ram with 4.7 to 5.7 Hemi

What would it take to put a 2004 5.7 Hemi in a 2002 Ram 1500 with a 4.7? I have an 04' Ram 4 x 4 with a wasted body that I want to pull the motor out of and put it in a 2002 Ram 1500 2wd. I'm thinking computer and maybe engine wiring harness. This sound do-able?

Most newer computers also have the vehicles vin number in it. This can cause problems if you need the vehicle inspected for emissions. Check this out carefully before you make the change.

There are guys out there running the 5.7 with the 4.7 computer, just need the harness and engine with all it's accessories, maybe a couple fuel lines and ground wires.