Someone please set me straight!
I have searched the interweb far and wide and cannot seem to get a straight answer. Im wanting to swap my POS non-running 2.8 v6 for a 4.0. I have heard that it cant be done, that it can be done with extensive firewall mods, that it can be done with just moving the radiator forward and changing the hood. I'd just love to know what the truth is. My xj is a 1985 and I bought a donor 1990, so I have everything I should need. I know some people will say to do the 3.4 swap, but I am dead set on the 4.0.
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it might be easier to just fix the 90 if it needs fixin and make 1 badass xj outa 2
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Originally Posted by xjmuddigger
(Post 762304)
it might be easier to just fix the 90 if it needs fixin and make 1 badass xj outa 2
better off with fixing 90 than doing so much to the 85. |
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Originally Posted by xjmuddigger
(Post 762304)
it might be easier to just fix the 90 if it needs fixin and make 1 badass xj outa 2
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Where do you live? off topic
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Originally Posted by 89whiteXJ
(Post 762352)
Where do you live? off topic
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oh ok. B/c there is a guy I know that just recently was talking about this and was wondering it you were him. But nevermind.
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Yes it can be done without cutting the firewall! You'll just need a nose off a 4.0 equipped xj. Simply because it's easier than cutting out your mounts and fabbing one in. I'm doing the same swap simply because I was givin an engine/tranny/t-case with out the jeep. But in my case I'm installing a 2000 front clip
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firewall should be the same no matter what motor it has you might need to change the location of the motor mounts ,use the wireing harness from the 90 the tcase cross member may move other then that it should swap without anything being done to the firewall
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Ooops I was talking about the radiator btw
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Originally Posted by DPoffroad
(Post 762365)
Yes it can be done without cutting the firewall! You'll just need a nose off a 4.0 equipped xj. Simply because it's easier than cutting out your mounts and fabbing one in. I'm doing the same swap simply because I was givin an engine/tranny/t-case with out the jeep. But in my case I'm installing a 2000 front clip
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Originally Posted by Ryno_XJ
(Post 762369)
Thats what I needed right there! When I get this under way, I am gonna have a build thread on every jeep forum I can find just for anyone that has questions like me.
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but ur guna have to switch out the PCM, fuel injector harness,...in fact, pretty much the whole engine wiring system. seems like it would be a real pain in the @$$ to me
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Originally Posted by Jeepjunky
(Post 762383)
but ur guna have to switch out the PCM, fuel injector harness,...in fact, pretty much the whole engine wiring system. seems like it would be a real pain in the @$$ to me
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