I have a 2012 1500 with the 5.7l motor, last year the truck spun a bearing and ever since I have been looking for a replacement to drop into the truck. I’m kindof at a standstill right now because I’ve been told I can only go through the 09-12 model motors due to the 2013s and up having the electronic steering pump and some other things that won’t work with my truck. I am wondering if it would be possible to drop one of the 2013+ motors in and what would I need to change for my truck to run properly. Thank you for reading I look forward to some answers

 

I am not that familiar with these motors so mind what I'm saying is speculation, I would expect you could mount all the hardware from your older motor onto the newer motor and it would function just fine.

 

"Possibility's" bwahahahaha..........I guess English is really not a required class anymore. "Possibilities" smh
As for "possible" engines.....any truck 5.7 from 2009 to 2024 will work, you will just need to use your year sensors (especially the crank sensor) and possibly your intake manifold unless you blew your engine up and there's the possibility of debris in the intake. The reason you were told stick with 09-12 is because they made a slight change to the crank tone wheel (you can look it up yourself). All you need is a long block and your timing cover, etc will bolt on to it. Don't try to use a car 5.7 because they use a different cam and you'll be down about 20 hp and your PCM is calibrated to make 390, not 370. Also there is a possibility that not all mounting bosses have been drilled and/or tapped for stuff to attach to.

 

I currently have the same issue and I just wanted to verify that 1500 to 2500 does not make a difference? I have a 2012 2500 5.7 that blew up and I am looking at replacing with 2012 5.7 out of a 1500. Want to make certain it will work before purchasing and installing.

 

Does your 2500 have MDS? the 1500 motor will

 

Yes you can use that engine. While the engine itself mechanically has MDS, your truck is not equipped to use it. Default mechanical position is off. As long as you leave it stock then it will work just fine. Don't remove any components unless you're going to remove all of them.

No 2500 5.7 ever came with MDS; HD's didn't have it at all until the 6.4 was introduced.

 

I wasn't sure when or if the 5.7 ever had MDS on the 2500 motor, seems rather pointless, build a big displacement engine and use half of it haha

 

The 5.7 isn't really a large displacement engine, unless you're coming from the realm of really small 4's and 6's. Domestically, generally above 400 in³ is considered large displacement (which isn't really seen much anymore). MDS was designed into the engine way back when it was introduced back in 2003, there just wasn't a sophisticated enough electronic controller to run it until CAN bus was introduced with the 2005 (mid to late 2004 build) 300 & Magnum 5.7's. Where MDS shines is in cars on the highway; steady load, steady rpm, kills half the engine. This is how my 392 Charger gets almost as good gas mileage as a 5.7 car. In fact at some lower speeds my 392 will go into MDS in 4th gear and then shift into 5th while still in MDS because it's powerful enough to do it. I can get it to go into MDS mode at 89 mph (cutoff for engagement is 90) and then get it to slowly accelerate to 90 and above all while keeping it in MDS mode. I think it's useless in trucks however I will say if not towing it's nice for long distance road trips.

 

I was referring to introducing MDS into the 6.4 hemi in 2500 trucks. by lifetime standards 392 is not big displacement, but in regards to what's on the market today, particularly in the Mopar realm, it is the biggest displacement production gasoline motor. I guess I had not considered the car/suv platforms also using the motor. Just like you mentioned MDS in a 8k+ truck seems pointless.

 

For Mopars yes....now Google '7.3 Godzilla'