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Old 05-26-2010, 06:05 PM   #1
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Motor exchange

Does anyone out there know if a 4.0 high out put from a 2001 Cherokee will exchange with a 1991 Jeep wrangler?
If not what changes would need to be done? Is it worth it if it doesn't?

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Old 05-26-2010, 06:58 PM   #2
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should, but would need to put all the electronics from 91 on to it. the 01 is obd2 the 91 is a obd 1. the injectors are diffrent, 24lbs yj's are 21. so you can use the block and head.
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