Hemi Swapp in 2002 Ram
Welcome to the site. From the 5.9 I guess? You would need at least the engine, PCM, harness's and all the engine accessories of course. There are a few threads here from guys who have went from the 4.7 to the 5.7 so maybe those threads can give some ideas of everything you will need. I would look at a 05 5.7 and harness if it were me though. At a minimum an 04.
Try this thread
https://dodgeforum.com/forum/3rd-gen...003-5-7-a.html
Try this thread
https://dodgeforum.com/forum/3rd-gen...003-5-7-a.html





