99 Grand Cherokee engine swap
Thread Starter
Newbie
Joined: Sep 2012
Posts: 5
Likes: 0
From: Pike Co. Pa
Year: 1987
Model: Cherokee
Engine: 4.0
I have a 99 Grand Cherokee with a wrist pin knock (still running). I have a chance to pick up a 97 Cherokee with a good engine for parts. I know there is an interchange issue about mounting engine & accessories between some years. Any assistance as far as do I have to change heads etc to make it work would be appreciated (I know all sensors will be transfered from 99 to 97 engine)
CF Veteran


Joined: May 2008
Posts: 5,188
Likes: 6
From: Bristol,Pa
Year: 94
Model: Cherokee
Engine: 4.0L
Seriously man, you need to stop responding to WJ engine swap posts. Your consistently putting out bad info..
OP, do a search here on "clean slate block" and you'll see the XJ/YJ/ZJ engine block will not bolt into a WJ unless you can fabricate new engine mounts.
CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
So 99 is the first year of the clean slate 4.0? I wasn't sure if was a mid year change or not, like the switch to the COP ignition system in the XJ.
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