Originally Posted by Nawarsaleh3
i haven't not gotten started on the swap yet, i bought a totaled 98 Cherokee and removed the engine and transmission, but the trans. was an auto,my 97 is 5 speed. so if i decided to go with a dodge engine instead, i would safe cutting out mounts,transmissions?
only reason why i thought of swapping a 4.oL because i live in Cali and wanted to get it bar'd for legit smogs.
The 5.2 or 5.9 what year vehicles can they be found in?
What I was saying is that with either a 4.0 or a v8 you will need new mounts, new engine harness, new trans, new ecu. You'll basically need the same amount of parts swapping to a 6 out an 8.
I honestly don't know the years...or the exact laws in California, but I'd be willing to bet whatever yearr the engine is has to be the same year as your jeep, or newer.
I can't link things from my phone, but if you search TJ 5.2 or TJ 5.9 swap there's lots of info on the swap.
I would think it wouldn't be too bad to get setup properly for emissions with another Chrysler/dodge motor in there.
My main point is, you pretty much need the same amount of parts to swap a 4.0 as a 5.2 or 5.9 & all three of those motors are Chrysler/Dodge & can all be found fairly easily...so why not choose a v8 from those options.
Additionally, whatever you do, sans just dropping in another 2.5L, you'll need to change the trans. The ax5 that you have now won't hold up behind a 6 or an 8 cylinder.
Considering you already have the Cherokee...you may just want to go with that.
I believe the belt routing/alternator location in 98 puts the alternator very low. That will have to be changed out it will hit the frame on your tj...but I think you can use a tj alternator bracket to fix that.
You'll need a tj 4.0 ecu for an auto or manual..whichever way you decide on the trans. Idk, maybe you could get the xj ecu to work?...but idk.
You can use the t-case out of the Cherokee, but if you use the trans from the Cherokee you will need to change the clocking for the t-case (from 23 degrees to 13)
Search the 5.2/5.9 swap & the aw4 (trans) swap for info on all this.
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