My motor blew the other day at ripe old mileage 220k

Reply Subscribe

Thread Tools

Search this Thread

01-02-2018, 01:10 AM

No4x4Yet

Senior Member

Thread Starter

Join Date: Jul 2010

Location: Long Island NY

Posts: 997

Likes: 0

Received 1 Like on 1 Post

Year: 2000

Model: Cherokee

My motor blew the other day at ripe old mileage 220k

Not the highest mileage 4.0 out there, but I think it did pretty well.

So my question is being that my jeep is a 2000 coilpack jeep, can I use a long block that came with a distributor from a 90s jeep? What if any mods do I need to make besides transferring the coilpack bit over?

Reply Like

01-02-2018, 06:36 AM

cruiser54

::CF Moderator::

Join Date: Aug 2011

Location: Prescott, Az

Posts: 43,867

Likes: 1,927

Received 1,524 Likes on 1,236 Posts

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

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 the 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)