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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.
Can you swap a 4.7L motor for a 5.2L motor? if so is there anything I would need to know before I jump into this project?
So you want to downgrade and make it hard on yourself? Because the electricals are totally different for the engine management, as well as transmission, exhaust, etc. The engine will physically bolt in with factory parts since it's the same family as the 360 (5.9), but the 318 was never available in the 3rd gen body. You would need ALL the donor stuff from a 360 truck and if you're actually going to spend the time and more importantly money to do this you'd be ahead of the game starting with a 360. As p38251 said, it would actually be easier to swap to a hemi since the 4.7 and 5.7 use similar engine management and same transmissions, though the hemi is fly by wire whereas the 4.7 is not.