I have been weighing my options with what to do with this truck as it is. I recently found out that the 08 4.7L has been redone with more power and being a better motor.

What would it take to put this newer 4.7 into and older 2002 truck. I mean I'm sure it'll bolt to trans and to the mount but will wiring need changed since its a newer engine? I'm ready to sell this thing but would prefer to keep it if I can just get it fixed better then when it came off the line. I'd appreciate any input I'm sick of thinking about it. Just need to make a plan and get it taken care of!
Thanks!