Originally Posted by Dusty.Rose

Well it finally happened. The motor went belly up in my 89 xj after 247k miles. Found a clean 95 xj with the same 4.0 but HO with a good motor for cheap (no title so parts rig) is it possible to put the 95 motor in my 89? And if so how complicated are the mods?

Originally Posted by Slim357

Yes it is you can just use the renix intake and throttle body. Look at the wright up section theres a how to thread in there on how to do the swap using all HO parts with your wiring harness. Very easy either way you plan on doing it. I gotta do mine in the near future and plan on doing the same thing your considering. Best of luck to you.

Originally Posted by Dusty.Rose

Thanks. I'll have to find a computer to use and take notes since I only have my phone. But I'm so glad it's possible. Me and my jeep were meant to be together I've sold it twice and she's found a way back into my life both times.

Originally Posted by Dusty.Rose

Thanks. I'll have to find a computer to use and take notes since I only have my phone. But I'm so glad it's possible. Me and my jeep were meant to be together I've sold it twice and she's found a way back into my life both times.

Originally Posted by cruiser54

Here's all you need to know:

Cruiser’s HO into Renix Swap
This swap is easier than some will lead you to believe, generally those who have never done it. Those of us who have done it, like myself, will share with you the things that need to be done for a successful swap. Just think of it as swapping in a long block.
The HO and Renix have some differences but none that can’t be overcome very easily.
Any HO engine from an XJ or ZJ through 1999 can be used. One running change was that the rear of the head was no longer drilled and tapped for the temperature gauge sender beginning in the 96 model year. The sender can be relocated to the threaded hole in the thermostat housing taken from the HO engine. You’ll have to extend the wire to that location. Some brave souls even drill and tap the HO head for the sender.
You will be using the intake and exhaust manifolds from your Renix, along with all your sensors and wiring. Since the intake ports of the HO are slightly different, you use the Renix gasket. Exhaust ports are identical.
You will need to use your Renix distributor as it is different than the HO because they use different fuel management systems. The flywheel or flexplate from the Renix must be used so your CPS gets the correct signals. The valve cover from the Renix allows you to keep your CCV system intact and requires no modifications.
The HO block will have a plug in the coolant galley on the driver’s side of the block, closest to the front, which needs to be removed so your Coolant Temp Sensor can be installed in it’s place just as it is on the Renix. It requires a 5/16" square drive or a modified 3/8" drive that has been ground down to fit. Do this before installing the engine.
As for the knock sensor, which is located just above the oil pan on the driver’s side of the engine about mid way, all the blocks I’ve seen are threaded for it. If not, I’ve heard they may be drilled but not tapped. Tap the hole if that’s the case.
　
Revised 03/28/13