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4.0 to 4.0 High Output swap

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Old 08-27-2012, 02:14 AM   #1
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Question 4.0 to 4.0 High Output swap

first time jeep owner any tips and or tricks on the 4.0 to 4.0 high output swap would really help.
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Old 08-27-2012, 03:14 AM   #2
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hope your not doing it for the horsepower difference
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Old 08-27-2012, 05:58 AM   #3
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Yup, I'm doing the same swap it's been slow, been a lot of trial and error. You'll need to swap distributors, flex plate.. I might be forgetting something but best of luck to you! What year ya swapping into. If ya have any big break throughs let me know or questions I'll see what I remember
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Old 08-27-2012, 10:23 AM   #4
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There is a write up in the write up section that may help.
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Old 08-27-2012, 10:03 PM   #5
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im completely pulling my 4.0 and swapping the wiring harness. the dit should work form the high output. i have a 90 cherokee and putting a 94 h.o in.
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