What year motors will work in my XJ?

[Venom]

I need to replace the motor in my 1995 XJ (4.0l), and I have been able to locate quite a few low mile 1996 and up motors at a decent price, but not lower mile 1995 and older H.O. motors. So My question is, what years will work for my swap? I know that '96 and up is OBD II, and my XJ is OBD I. Can it be done, and if so will I need to do any modifications?

Thanks,
Tony

[4.3LXJ]

You could use the96 - 99 motor if you change the intake and all related sensors and use the 95 flywheel/flexplate

[Venom]

You could use the96 - 99 motor if you change the intake and all related sensors and use the 95 flywheel/flexplate
I read something about also having to drill and tap the head to accept the temp sending unit from the older motor. Any truth to that?

[grainofsalt]

Some heads have the hole for the temperature sender there already, You would just have to take the plug out.

[Venom]

Any difference between the auto and manual?
I wouldn't think so, but a few wrecking yards have asked.

[grainofsalt]

Nope, they are the same block.