js03wj

What other block can I use for my 03 l6 Cherokee? I doubt I could use the earlier l6 blocks as they have distributors right?

Red River T

98 & earlier have different motor mount locations.

js03wj

so 99-03 are compatible?

Bustedback

99 and up WJ and TJ engines will work. You can not use an XJ engine.

js03wj

ok, thanks. good to know. I guess my options are limited.

js03wj

Anyone in the mid cali area have a good short block for sale?

js03wj

So if I get a 99 l6 I can bolt up everything from my 03. intake/exhaust mani's, head?

Bustedback

As long as it's from a 99 WJ or TJ.

js03wj

sweet! Thanks a lot! This is the donor jeep. Guy wants $300 for complete motor.


http://monterey.craigslist.org/cto/4904360628.html

dschappell

I learned this the hard way. My xj started as a donor to my WJ. 99 X to a 00 W. Wondered why the oil filter way in a different position. Learned a lesson.
I know that the 99 originally ran a coil pack for ignition but my motor has a dis. I did know it was not the original so someone put a different motor in. My guess is it's just the mounts that changed. Everything else either fits just right or can be converted (position of A/C and alternator etc) if I understand correctly.

dave1123

Wait! Didn't Busted just tell you an XJ motor wouldn't work?

Bustedback

Your WJ brackets won't bolt to the XJ block. Again, you need an engine from either a WJ or TJ, NOT an XJ.

js03wj

Sorry guys. I didn't realize that xj's existed in 99. I thought all cherokees in 99 where wj. That's why I'm confused. So I'm back to square one.

cruiser54

This may help:

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)

js03wj

Thank you! That's answers my question!