Ford 4.0 V6 into Jeep

Jeepasaurusrex · Jan 27, 2010

Does anyone have an idea on what it would take to drop a 4.0 V6 from a Exploder into a 67 CJ-5? What bell housing pattern does the block have? Electronics? My friend has a exploder he is parting out with a good running V6. His CJ currently has the original Dauntless V6. :corn:

Fordzuki · Jan 27, 2010

I'm pretty sure you're stuck with a ford trans, either m5od or the slush box (a40d? But I have seen someone adapt to an np435 before, give me a minute and I'll get you a link.

Here it is, starts on post 510.
http://therangerstation.com/forums/showthread.php?t=1289&page=34

Totalled · Jan 27, 2010

You could also put a C4 in it... but the only converter off the shelf that works with it is for a 2.8, and is way loose behind the 4.0. You can have a custom lower stall converter made, but it still isn't very streetable.

Best bet for a trans would be the M5OD 5 speed. Which is kinda long for a Jeep application, and you would only be able to use the RBV t-cases, which are driver's drop.

Great motor, limited transmission options. :booo:

JOOP · Jan 27, 2010

The v6 4.0 is a good motor with some power too.:awesomework:

Jeepasaurusrex · Jan 27, 2010

Yea, that's my thinking.. Great motor, and its free. Its just the connection issues that's keeping us from dropping it in. Does anyone make a stand alone computer harness like Painless does for the 4.3? :corn:

Fordzuki · Jan 27, 2010

I don't know about a stand alone harness, but the stock harnesses aren't too hard to thin. A haynes manual and a little common sense and it could be done in a day. Get an FSM and it'll go even quicker.

Jeepasaurusrex · Jan 27, 2010

I did a 4.3 harness a few years ago. Piece of cake. I was an avionics technician in the Army, so electrical is a breeze. My biggest hang up right now is hooking it to a quality tranny.

Totalled · Jan 28, 2010

Ford EEC is pretty much stand alone. It's only a couple powers and grounds to run the computer/fuel pump.

jrgaylor · Jan 28, 2010

Advance adapters has a adapter/kit to put the a 700r4 behind the 4.0

Totalled · Jan 28, 2010

Forgot about that. It's not cheap, but it would open up your trans/t-case options allot.

Poohbair · Jan 28, 2010

Put it in w/ the 5spd...

I love a 4.0... I am looking for another early 90's Explorer w/ a 4.0/5spd combo...

Jeepasaurusrex · Jan 28, 2010

It has an auto behind it. I would probably have to put a manual tranny ECU in it? Is the crank drilled for a pilot bushing? I could build an adapter plate to bolt up a standard Ford bell housing, but that would take a lot of work.

Totalled · Jan 28, 2010

In the stock manual application, they actually take the pilot bearing in the flywheel, but it will fit in the crank. Same whether they had an auto/manual. The manual computer is preferred. It will work with an auto computer, but it will idle higher and it will throw codes looking for the trans solenoids. The manual computer also has a more aggressive timing curve.