Am rebuilding a 2000 xj engine to drop in my 1989 xj. Anything that I should be aware if that is different as far as electrical or anything?

 

Pretty much all the wiring, fuel injection system and the 2000 version uses coil packs instead of a distributor. 89 had the early Renix fuel injection system and the 2000 will have the much better mass flow. You'll need the wiring harness from the 2000 to do a full on swap.

 

Is that hard to do? I don't have much experience with electrical at all.

 

Considering you'd be swapping the complete wiring harness and ecm, possibly gauge cluster as well, I'd say yes it would be in the hard category.

 

this is what i found from a different post. they were swaping a 97 HO 4.0 into an 88.
"Use your intake and all your sensors and put them on the HO motor and just use the HO exhaust manifold as its a better design. To you guys that say its not possible it is think about it, the motor has the same displacement, Same stroke and bore, and the same timing. The only differences is the Head design as the exhaust and intake ports have been played with to make it a HO and 95 and newer HO have been changed a little here and there for Emissions."