4.7L to 5.7L HEMI Engine Swap - 2004 Dodge Ram
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- Опубликовано: 12 июн 2024
- Hi! In this video, I explain how I swapped a 5.7L Hemi engine into my 2004 Dodge Ram 1500. I believe this is the first video created that covers in detail everything you need to successfully do it. This same method can be used for other years too. There’s a lot of information packed into it, so hopefully it goes a long way helping people out. Enjoy!
NOTE ON CRUISE CONTROL: The ABS module was not on the shopping list, but you will need it for cruise control to work in the 5.7L because they're a different part number from the 4.7L to 5.7L, otherwise cruise control will not work properly or at all. Pulling the ABS module and PCM from the same truck is the simplest way to avoid the ABS module "VIN Mismatch" code which will cause the ABS and Parking Brake lights to be on in the dash.
Good luck! 
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Nice job. I would liked to seen this in a series of videos. And more of a step by step.
I have personally done several projects with this guy, he’s an absolute genius. Amazing quality video as well!
You came in clutch on a couple of those! Always fun working with you Sir 🤝
Plan on doing this when my 4.7 blows thank you
Cool! No problem
Now I want do this to my truck. I'm already having problems with my 4.7
this is so cool!
Good job Jonathan.
Thanks Grandpa!
Sweet!
so my 07 dodge has a v6 will the wiring harness connect the same to the inside of the vehicle?
I don’t know but you can find out by checking wire diagrams or physical comparison to a hemi of that year
Will a 5.7 out of an 04 Durango work in a 04 ram 4.7
They should be identical engines except I’ve heard the starter motor is on the opposite side. You may need a Ram starter to account for the opposite shape
So when i go to the wrench a part and get a pcm do i need the immobilizer too? Confused how to program the key cant find any locksmith with software to reprogram ecu or pcu
Most PCMs from a scrapyard aren’t going to have SKIM equipped at all because SKIM was only used on the Laramie trim. Since mine is a Laramie and had a SKIM I got my 5.7 PCM’s VIN re-written with the VIN my truck came with (that is also in the SKIM) and then my keys automatically worked because the PCM and SKIM both showed the same VIN. Most locksmiths should be able to re-write a VIN because most scan tools over $1k do it. Locksmith shops usually have the fancy $3k+ ones. If they can program keys, their scanners can re-write the VIN in the PCM too. I’ve also used the Autel MS906 scanner to re-write my VIN. Hope this helps!
I would grab the PCM, SKIM, and ABS all from the same truck if you can because they’ll all show the same VIN, then all you have to do is reprogram your keys. That’s usually a few bucks at the locksmith
What fuse box did you use the 5.7 or can I use the 4.7 fuse box? Also can I remove the fuel and evap line without removing motor at the salvage yard?
I used my 4.7 fuse box, it’s identical.
Yes, you can pull the fuel & evap line without removing the engine. I pulled it over top of the driver side valve cover after taking the intake manifold off. There’s a little clip on the bellhousing with two bolts you can see in the video
When removing the cruise control module under the battery box it ties into a t. I have deleted it but the other end of the t goes into the firewall under the wiper cowl and I have researched and found it's called the vacuum reservoir. Did you delete yours or just change the t into a coupling going into the brake booster ?
BR0 might just be a life saver for me
Good to hear!
@@Jonathan-Vasquez 4.7 head blew and i been wanting to do this but really didnt know what i had to get and replace
Me too on the wanting to do it for a long time. I wanted to for 5 years and finally decided to go for it. I learned what all I needed to do at the scrapyard on a junk truck and seriously did my homework. I didn’t know for sure it would all work out because I didn’t have a video like this to reference which is why I made it! It’s a good list of parts you’ll need but once you have them it’s 100% possible and very rewarding
There seems to be a lot of unclear info out there on this 4.7-5.7 swap for 3rd gens so this clears things up and I bet a lot of people in similar situations will be a bit more confident putting out the time/money to do it knowing it will work
Didnt that generation come with the 5.7l hemi...?
Yes, 3rd gen 1500s came with several gas engine sizes. This one was a 4.7L
@@Jonathan-Vasquez interesting
I bet this was a school project…
I don’t know of any pre-med degrees that require engine work or welding
Not only is it a power increase but also reliability upgrade. 4.7 are complete garbage and should be deleted from existence. Never have I seen a 4.7 truck for sale that didn’t need head gaskets or have overheating issues.
Because people don’t know how to manage the proper maintenance on em , you can easily find 4.7 at 300000+ miles while the hemi at 150k already has a wiped out cam
Agreed. My 4.7 never failed me in 5 years and I put it through good use. I think they’re solid engines, just lacking power for that size of truck and especially if you do consistent hauling. It goes both ways though. My Dad’s 5.7 has 220k on it and still runs like a dream. Maintenance and operation are key
I changed the hole wiring I don my truck