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99 Grand Cherokee engine swap

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Old 03-03-2013, 09:07 PM
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Default 99 Grand Cherokee engine swap

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)
Old 03-03-2013, 10:03 PM
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Engine: 4.0 with all of the noise and clatter
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If your 99 does not have the COP ignition, I think the 97 engine will be a direct swap.
Old 03-04-2013, 11:36 AM
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Originally Posted by Bustedback
If your 99 does not have the COP ignition, I think the 97 engine will be a direct swap.

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.
Old 03-04-2013, 12:18 PM
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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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