Not sure if you guys can help me, but thanks in advance for your help!

I have a 2005 Jeep Wrangler as my daily driver and it's been pretty good. My biggest gripe about it is the old low-performance pushrod 4.0L inline-6. I'd like to replace it with something better, but I want to avoid a lot of the hassle and headaches that go along with driveline swaps.

My jeep has the Chrysler/Mercedes NSG 370 6-speed. This same tranny was also used in the Chrysler Crossfire, which had the Mercedes M112 engine. What that tells me is that swapping a M112 engine in for the I-6 should be fairly straight-forward. That said.. I've always been a V8 and V12 guy, not really much into the four-bangers and V6s.

Is the M112 exactly the same as the M113 with the exception of having two cylinders lopped off of the end and the addition of a balance shaft? Would a M113 V8 swap be just as easy as M112 (same bellhousing bolt pattern, flywheel, etc)? Any guidance you guys could provide would be great!

I'd love to bolt in a M113 V8 to my wrangler..

 

No one knows the bellhousing patterns for these engines?

 

the trans will bolt up but the question is the electronics and the mounting of the engine. and the evap system and cooling system issues.

 

The cooling system, evap, mounting, AC, power steering, etc is all standard swap stuff which I am not worried about. I'd have to do all of that regardless of which engine was being swapped.

Getting the tranny to bolt up, clutch and flywheel to work, and getting all that glorious power to the rear wheels is the hard part.

Are there any M113's that came with manual transmissions? Or, is there any over-the-counter flywheel that will work with this tranny and engine? Could a manual tranny flywheel from a M112 bolt onto the M113 crank? I'd like to avoid having a flywheel custom machined..

 

Anyone know about the flywheel?

 

good luck getting it to start is all i have to say
the flywheels golt patterns are same
i dont think a 112 fly wheel will work on a 113 because of the teeth for the crank sensor different pattern

 

Old thread but I wonder where this project went. I'm thinking about a M113 in a 2005-2010 Jeep Grand Cherokee. Have done swaps in the past (one of the best was a Chevrolet 2.8l V6 into an Audi 5000 Diesel, now that was a fun car to drive!) No stranger to adapter plates for motor/tranny or making custom intakes, etc.

But - the '05-'10 Grand Cherokee uses a 5G-tronic Mercedes transmission, I wonder if the M113 will bolt right up to it? And like all modern engine swaps, the ECU and engine wiring, and sensors all need to come with the M113 and be adapted to the Jeep. Engine mounts, cooling, and all the accessory systems hook-up is standard fare for an engine swapper.

The key to a good swap is planning, it's good to have a pal in the auto wrecking business, you can try engine/trans bolt ups on the ground before you get too carried away. And you have to be able to walk away from the idea if there are deal-killers, like physical limitations, downstream parts that can't take the new HP/torque, or excessive costs. We all know of half-completed mutations that hit an insurmountable problem, or ran out of funds, primarily because the swapper got emotionally involved lol.