2.5L to 4.0L - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 04-13-2003, 04:12 PM
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2.5L to 4.0L

i am sereously thinking of putting a new engine in my 88 jeep. it currently has a 2.5L with a 5 speed tranny. it is prooving not to be enough power. my tranny is going bad and i would like to replace it also (i still want a manual). i think that the best option for me is a 4.0L because it is the ideal swap, but any ideas on a cheap engine and trany would be helpfull. also if you could tell me what the best swap is then it would be helpfull thanks.
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post #2 of (permalink) Old 04-13-2003, 07:09 PM
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Re: 2.5L to 4.0L

the 4.0 L is a bad swap for a YJ, it is better to swap a vortec v6 or even a V8.
I am going to swap a 2.7 Mercedes 6L turbodiesel with 5speed auto/triptronic manual ...
My best advise is to go to advanceadapters website and take a look. I have their catalog and that is what they say...
post #3 of (permalink) Old 04-14-2003, 12:00 AM
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Re: 2.5L to 4.0L

don't you think that u will have to replace alot of drivetrane parts to account for the much more powerfull engine?
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