Found a potential donor motor and wanted to solicit some feedback.

Anyone have any experience with the 02 TJ 4.0L? What's the good and the bad? Looks like a direct swap into a 01 XJ.

All I've ever heard is that the block casting for all the mounts are different. Been like that since '99 I think. WJ too

XJ Cherokee and ZJ Grand Cherokee 4.0L engine blocks interchange.

2000+ TJ Wrangler and WJ Grand Cherokee 4.0L engine blocks interchange.

XJ/ZJ blocks and 2000+ TJ/WJ blocks do not interchange without significant modifications. (1997-1999 4.0L TJ Wrangler blocks will interchange in XJ/ZJ and visa-versa).

TJ/WJ 4.0L Engine blocks underwent clean sheet design changes effective in the 1999 WJ Grand and 2000 TJ Wrangler.

These blocks are not interchangeable with XJ/ZJ engine blocks. The reason is motor mount bolt holes and belt driven accessory mounting bolt holes are in different locations, or not present at all, TJ/WJ vs. XJ/ZJ.

^^^info was copied and pasted from cruiser54's posts

Well ****, that blows. Thanks Wonders for the info.

THIEF!

Shoulda posted the whole thing though.

I did. I googled your post and c/p the entire post. I'm guessing maybe it must have been an old post lol

Alright, you're off the hook.

Here it is in it's entirety.

XJ Cherokee and ZJ Grand Cherokee 4.0L engine blocks interchange.

2000+ TJ Wrangler and WJ Grand Cherokee 4.0L engine blocks interchange.

XJ/ZJ blocks and 2000+ TJ/WJ blocks do not interchange without significant modifications. (1991 to 1995 YJ and 1997-1999 4.0L TJ Wrangler blocks will interchange in XJ/ZJ and visa-versa).

TJ/WJ 4.0L Engine blocks underwent clean sheet design changes effective in the 1999 WJ Grand and 2000 TJ Wrangler. These blocks are not interchangeable with XJ/ZJ engine blocks. The reason is motor mount bolt holes and belt driven accessory mounting bolt holes are in different locations, or not present at all, TJ/WJ vs. XJ/ZJ.


XJ: "Regular" (not Grand) Cherokees 84-01
ZJ: Grand Cherokee 93-98 (Gen1)
WJ: Grand Cherokee 99-04 (Gen2)
YJ: Wrangler 87-95 (Gen1)
TJ: Wrangler 97-06 (Gen2)

I used this thread that I found on Google.. Lol

http://www.jeepforum.com/forum/f11/4...topics/1405083

Before it was edited and refined, I imagine....

Cool none the less. Thanks for posting it up.

Uhoh. Now you owe him royalties. Payable in IPAs.

What's the hell is ipas? Lol

Oh u mean beer? Why didn't u say so, there were no need to use fancy and big words!

Specificity is important. Just like I can be bribed with Rotella...