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5.2 in an xj

Old Oct 7, 2014 | 04:15 PM
  #1  
XJ4life92's Avatar
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From: Levittown P.A.
Year: 1992
Model: Cherokee
Engine: 4.0L H/O
Default 5.2 in an xj

ok so before i get all of the "why a 5.2?" or "why not a 5.9"... i know a LS, 350, 5.0, or a 5.9 would be better, so if anybody feels like giving me any of these motors and all the adapters or drivetrain to make it work, feel free... but as of now my 4.0 isnt happy. at all....to the point where i have a dead cylinder, or almost dead, and so much blow by that the oil pours out of my air filter after driving it for any longer then 20 min....so on that note....does anybody have any experience swapping in a 5.2 and the trans out of a zj into a xj? also before you go saying stroke my 4.0...note that i can get a 96 zj with around 100k miles for 400$. again, stroking the 4.0 cost big bucks and my 4.0 needs to be bored out...not cheap. plus...i want a v8 under the hood. even though the 5.2 is a rather wimpy v8, still 225hp and 300 ftlbs stock...plus its much easier to make more power out of it then the 4.0.

so to not beat the dead horse, i said what i said because ive researched a bunch of threads where someone suggests it, and the only comments he gets back is "why the 5.2, why not a 5.9" or "the 5.2 sucks, stroke your 4.0" or comments of the sort. 5.2 is cheap, readily accessible, plenty of power for my needs and that trans will bolt right up to my np242.

now ive heard that the motor will just bolt right into the stock motor mounts. i dont know if i believe that or not. modifying the xmember isnt a problem, and neither is wiring the thing. i was just wondering if anybody has seen it/ helped with it/ or done it.
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Old Oct 7, 2014 | 04:45 PM
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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I have not seen it done, I want to. I would use everything you can from the doner ZJ.
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Old Oct 7, 2014 | 05:00 PM
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From: Levittown P.A.
Year: 1992
Model: Cherokee
Engine: 4.0L H/O
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Originally Posted by Bustedback
I have not seen it done, I want to. I would use everything you can from the doner ZJ.
well ill most likely be picking up that zj this weekend. godda tear it down and scrap the body before winter, and ill prolly do some things to the motor trans when its out. and begin the swap in spring. i godda get the whole wiring harness, ecu, and trans ecu and all.
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Old Oct 7, 2014 | 05:07 PM
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From: Greenville, SC
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
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After I saw this thread I did some googling, and found a few threads on naxja about the swap. They made it seem pretty easy just make sure you get the right parts should fit and everything, just google and see if you can find the write ups, if any from the people who already swapped.
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Old Oct 7, 2014 | 05:09 PM
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From: Levittown P.A.
Year: 1992
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Engine: 4.0L H/O
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Originally Posted by SatiricalHen
After I saw this thread I did some googling, and found a few threads on naxja about the swap. They made it seem pretty easy just make sure you get the right parts should fit and everything, just google and see if you can find the write ups, if any from the people who already swapped.
i found the most helpful one on naxja....but theirs hardly any info on it. ill have to sift through all the b.s.
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Old Oct 7, 2014 | 05:10 PM
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Originally Posted by XJ4life92
well ill most likely be picking up that zj this weekend. godda tear it down and scrap the body before winter, and ill prolly do some things to the motor trans when its out. and begin the swap in spring. i godda get the whole wiring harness, ecu, and trans ecu and all.
Not to hijack the thread, but Levittown is only like 45 minutes from me, and I might be interested in the seats from that ZJ...
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Old Oct 7, 2014 | 06:24 PM
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There simply isn't any aftermarket support for this swap.
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Old Oct 7, 2014 | 09:52 PM
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From: Levittown P.A.
Year: 1992
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Engine: 4.0L H/O
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Originally Posted by bac0nfat
Not to hijack the thread, but Levittown is only like 45 minutes from me, and I might be interested in the seats from that ZJ...
if theyre leather, i might put them in mine. if their not leather then i godda check with a guy at my work and if he doesnt want them ill let you know. send me a pm and ill get back to you in a week or so
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Old Oct 7, 2014 | 09:55 PM
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From: Levittown P.A.
Year: 1992
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Engine: 4.0L H/O
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Originally Posted by SeriousOffroad
There simply isn't any aftermarket support for this swap.
not really sure why.... but thats fine. some metal and a welder and i think i can figure it out. even if i have to make motor mounts out of stock lower control arm bushings, ill figure out a way to do it haha.
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Old Oct 8, 2014 | 06:52 AM
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From: Havana fl
Year: 1995
Model: Cherokee
Engine: 4.0L
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I don't know why you bash a 5.2, they can make power... The make air gap EFI intakes, cams, etc for them. The biggest problem with the chryco v8's is the tq management in the ecm, have it reflashed and it makes a world of difference
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Old Oct 8, 2014 | 11:21 AM
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From: Levittown P.A.
Year: 1992
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Engine: 4.0L H/O
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Oh I'm not bashing the 5.2 at all. Everyone else does. What does to stand for again?
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Old Oct 8, 2014 | 11:28 AM
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From: Havana fl
Year: 1995
Model: Cherokee
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tourqe ? is that what you were after?
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Old Oct 8, 2014 | 11:30 AM
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From: Havana fl
Year: 1995
Model: Cherokee
Engine: 4.0L
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http://www.hughesengines.com/Index/p...p?partid=24773
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Old Oct 8, 2014 | 03:39 PM
  #14  
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From: Levittown P.A.
Year: 1992
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Engine: 4.0L H/O
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Phones auto correct turned tq into to lol.
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Old Jan 5, 2016 | 05:01 PM
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From: Levittown P.A.
Year: 1992
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Engine: 4.0L H/O
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bringing this back cause i got the 5.2 in last year. this year the 44re died so then i swapped my auto to a 5 speed with the ax-15 and lots of work.... heres the videos

Auto


auto, donuts


work in progress , open headers and a few fireballs


First drive w/ ax-15

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