What all do I need to transplant the 5.7 into the 2002? Any advise will help thank you.

 

Money and skills, also tools help a lot.

 

Plus a lot of beer.

 

What's currently IN the 2002?

 

It had the 4.7, got a good deal on the Hemi with the trans, wiring harness, engine, going back for the fuse box and harness after the fuse box. My biggest concern in the whole key fob security, he didn’t have the fob.

 

Sounds like a major computer/ECM/electronics headache.

 

More than you probably want to or capable of dealing with. Since most people don't like the short answer, here's the long one:
1. It WILL physically bolt to your cradle and trans (once you change the flywheel). Easy part ends here.
2. 2002 is pre-CAN bus, 2014 5.7 is 2nd gen CAN bus with VVT and MDS (neither of which can be supported by PCI bus, it just doesn't have the processing power or speed)
3. Because of the differences in #2, the inputs required from other systems in the truck for the '14's PCM cannot be established.
4. Accessory drive is totally different, in 2009 with the advent of the eagle engine in trucks the accessory drive was redesigned to accommodate a much different intake manifold. Vastly different than your stock setup. You'd have to be willing to lengthen wires, create custom AC hoses, etc etc up to and including possibly notching the frame up front; the newer setup is very similar to an LX hemi accessory drive and those HAVE been retrofitted to 3rd gen Rams. Ends up requiring pretty much everything I listed off.
5. Assuming you're willing to perform #4, you COULD pull the crank and install an older tone wheel then reinstall it; you COULD lock the phaser for the VVT. Problem now is you're stuck with a 4.7 PCM and harness that you either need to replace with an early (03-05) 3rd gen hemi PCM harness or attempt to get it to run with the 4.7 setup to keep a manual throttle body (all factory 03 and newer hemis use an electronic throttle body).
6. Since you didn't specify if it was a 2014 truck or car engine; if it's a truck engine and you wanted to try and use the stock intake manifold, you'd have to wire in an RPM switch and power to activate the solenoid for the active intake.
7. Eagle hemis stock injector is the same one the 6.1 used; goes without saying you'd need a custom tune to scale the injectors properly and of course actually get Frankenstein's monster to run right lol

Your life would be a helluva lot simpler if you either traded in or sold your 4.7 truck to get one with a hemi (the correct one) already or used a 3rd gen (03-08) 5.7 with it's associated harness. Hell, a 6.1 would be easier to put in your truck and get it to work right than an eagle 5.7.

 

Well I had both a chuckle...and gained some valuable info there. Magnoom. Thanks for positing. Im kinda thinking the OP wont be back to post results...like so many others

 

Happens all the time...sometimes I think people join forums just to ask how to do the outlandish swap they got in their heads to do lol. Like you said, most don't ever follow through, they give up or figure out they aren't capable of doing it or afford to pay someone else to possibly do it and disappear. Almost feel bad for him because he bought the parts before finding out if he could actually use it.

 

Great, comprehensive reply. I knew it would be a headache because of the differences in electronics compatibility, but didn't know the exact details of it. That is even more than I imagined. If he had the vehicles to spare to make it an outright project car/truck, that would be cool to work on over time (assuming the correct mechanical know-how and tools, etc.). I do hope OP can get his investment back if he doesn't decide to go ahead with the swap attempt.