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I want to do an engine swap into my TJ (2.5L) I want either my buddies 4.0L out of a 93YJ or a vortec 4.3.

How hard is this swap going to be??? And I know I won't be able to pass emmisions here and I did search!
 

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No you obviously didn't search.

The 4.0 liter swap would be just as difficult as the 4.3 swap.
 

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mudinredneck said:
..... and I did search!

what did you search for? "egnine sawp Jepe jt" ?

anyway, hes right, unless you have the complete powertrain and computer, its just as easy if not easier to do the 4.3 swap. in MOST cases, emmissions isnt a big deal if you use a motor newer than the jeep, OR, if you keep all the emmissions crap on the rig, make sure its running right, and blow a clean sniffer, they probably wont look twice.
 
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