95 4.0 into 91 XJ ?

What things are different on these engines? Looking at doing a swap. Need to know what I need off my old engine. Thanks

Please help me out on this one. I tried to do a search and found no results

ALLIANCE HTW said:

What things are different on these engines? Looking at doing a swap. Need to know what I need off my old engine. Thanks

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Nothin...just use everything off either of them and you should be fine. If you wanna be safe just use all of your accessories but I'm pretty sure 91-95 4.0s are IDENTICAL. Good luck.
-Collin

Thank you. I thought so too, but had a guy tell me I would have to use my intake, exhaust and alternator. Just wanted to check with the people on this board. Pretty sure they didnt change until 97?

ALLIANCE HTW said:

Thank you. I thought so too, but had a guy tell me I would have to use my intake, exhaust and alternator. Just wanted to check with the people on this board. Pretty sure they didnt change until 97?

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Ehh well actually intake didn't change much til 99 (except for ps pump changes in 96) but a lot changed in 96 with the introduction to OBD-II. Honestly I'm not sure on the alternator, you probably should use your own just to be safe or check an autoparts store website for the interchange. On the exhaust I would just use whichever manifold looks good and I believe the downpipes are the same so you should be good.
Hope it helps,
Collin

I think the 91 had a slightly different crank position sensor, or at least a different connector, that is unique to that year, so I'd make sure that the CPS matches whichever year computer and harness you're using. Otherwise, I think everything should be interchangeable.

Thanks for your help. It gives me an idea of how much would or wouldnt be involved with this swap. Valuable info for a first timer on engine swaps.