I have a 2005 Jeep grand Cherokee with a 4.7 engine...I have a 2008 dodge magnum 5.7 that I wanna use in the Jeep....will this work? All parts are available for me to use...has anyone used a car motor as a swap? What problems would I have? I wanna use motor and tranny if possible....
Although I can't speak directly to the swap you are describing, I think most people determine that full powertrain swaps like that are more hassle than they are worth. The electronics on these things are pretty complicated, and there are many chances for things to go wrong!
Plus, I do not believe the Dodge Magnum used the 545rfe (perhaps the W5A580?) tranny found in the V8 Jeeps, so you may have some problems there as well. The 4.7L jeep does have the right transmission, but I do not know what would be required to make it work with the Hemi motor out of the Magnum.
Why not just sell the Jeep and Magnum, and use that cash to buy a Hemi Jeep?
Yes....the jeeps use the 545rfe trans.
You might want to check the configuration of the front accessories and side for the radiator inlets/outlets as well. I think the Jeep hemis are like the Ram Hemis which are differant than on the cars.
i have 168000 miles on my 4.7 and its smoking and burning oil...the car is pretty much free so i wanted to make this work....hoping more positive feedback....
Its possible but so is a 6.1 in a liberty. You will need the computers, mounts, etc from a hemi jeep. So three vehicles to make one? You might be better off looking for a 2008 or newer 4.7. Now that is more likely to "click right in."
168,000 on a 4.7 now thats good news for some of us!!
ive heard i might need a computer from a 05 cherokee that had a 5.7 motor and it should click rite in, my transmission should work on the hemi but then my ecu would need to be reprogrammed to accept my key....if anyone can help id appreciate it....
Swap has been done many times on Ram trucks...4.7 PCM can be used, but it is best to use a 5.7 harness. No telling what issues you'll run into with the Jeep electronics, but I think it is doable.
So you want to take a setup that works and torment yourself with what will likely be an endless series of hassles? Radiator, AC, front suspension, mounts, drivetrain, and a lot of electronics changes, are but the start of the effort.
Just rebuild the 4.7 or buy a Jeep that already has the 5.7L. Seriously. You already know how the 4.7 serves your needs. Why change that to living with a Frankenstein that nobody will be able to diagnose or service?
I'm all for challenges but the added parts costs and labor issues here don't make a lot of sense.
It'll be a big headache, and not really worth it if you ask me. The magnums used the NAG1 trans. Oil pan and oil pickup is different between the 5.7 in the car and the 5.7 in the Jeep. Plus all the electronics and everything else, huge can of worms but sure it can be done.
Can't just slap parts together and make it all work. Boost is great, but if the compressor is out of its peak efficiency its alot of work and money for nothing.
While I can't speak to the complete swap, as said above, I am sure it would be an ongoing PITA. I also own a Hemi Maggie and a Hemi WK and, just off the top of my head I can tell you some of the differences. The Hemi Maggie uses the NAG1 trans. so you'll have to stick to the 545RFE unless you install the WK SRT NAG1 and (probably) transfer case. The TCM for the Maggie is a separate unit (under the dash by the steering column) and the WK's TCM is built into the PCM. I think someone mentioned using the 4.7 PCM, but the 4.7 doesn't have MDS, so this may not work. The oil pans are different (because of the 4WD, unless you have an AWD Maggie), so you'd have to get a 5.7 WK oil pan. The wiring harnesses and power distribution boxes are located in different places....Maggie has one in the spare tire well in the rear by the battery, and one on the front passenger side in the engine compartment. The WK has both up front on the driver's side. Don't know if/how this would impact anything, but for sure would be one of the biggest challenges to figure out. Hope you're good at chasing the FSM wiring diagrams for both vehicles. They'll make your head spin, just figuring out how everything is intertwined. I am sure there are many other things to consider, but I know I wouldn't want to tackle it. If it were just an engine swap between a 5.7 WK and a 5.7 Maggie, I'd say, not too big a deal. All I can say is, good luck if you decide to take this one on.
this almost makes me say its a no go....i just dnt want to lose the 5.7 because its free.....what to do??? i was hoping someone had already done this....
I'd agree with the "no go". The exhaust would also have to be completely redone, as the manifolds are different, as is everything from there back. Why don't you want to keep the Maggie? I love mine. What kind of stuff (accessories/add-ons) is on yours? Are you planning to part it out?
even if all this magically works, you will have a very week jeep that will fail eventually and you´ll get back to the beginning.
Sell both and buy what you need, WITH the engine already in it.