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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I am still swapping out but almost done will put picks on shortly. but i has been a nightmare. I have had to pull all wire out of the old truck and the dash too.
we have a guy here in our club that went from a 02 4.7 to a 05 5.7 and he had a kinds of fun figureing out everything that had to be changed over but he got it done and brought it out to the car show last night and the only thing he couldn't get to work was the tach
You I would do it again. I am just glade i had a complete other truck to swap. so anybody that wants to do this better have the other truck or ready to buy all of the wiring cause ur going to need it. dodge likes to change things up.I almost thought i was over my head but it is worth the Hemi lol.
The ONLY way you can pull it off is with a complete donor truck. No way somebody is just gonna buy a Hemi engine and do this swap...
Well, I did it... it wasn't the easiest job, but I got it done. Chassis wise,its the same. I got a custom wiring harness made by Street and Peformance in Mena, AR (hotrodlane.cc is there website) That only will run the engine. I had to run the old 4.7 computer to run the gauges and slice into the existing sensor ie, oil pressure, water temp etc... The only thing I can't seem to get is tach. It gets it's reading from the crankshaft, but it seem to be working, but there's no problem going old school tach with pedestal mount. But say it can't be done without a donor truck is not correct.