5.9 swap

I was thinking of swapping out the old 4.0 and dropping in a 5.9 out of a Grand Cherokee and wanted to know if anyone has done this and if so is it a pain in the ass or will it just not work. My XJ has the AX-15 transmission in it and i know some people have mated this tranny in a Grand Cherokee with the 5.9 and wasn't sure if it would work the other way around.:dunno:

It will be a pain, it may or may not be worth your time, depending on how it looks after you research everything.

Read this:
http://www.novakconversions.com/knowledge/xj_swap.htm

I looked into it, and eventually went the Stroker route instead. It was easier, cost a third what a v8 swap would, and i am happier with it overall.

You would need:
mounts
new radiator, and soem way to fit it if the V8 gets in the way
new exhaust
custom headers most likely
new fuel pump, and reroute lines
computer
engine harness and new gauges as yours may or may not work, and if they do work they will probably not rear correctly until calibrated


I would go with a SBC over that 360 in the long run if you do decide on a v8 swap. The SBC is a better motor to build on IMHO, and It has a large amount of after market support in the areas of mounts and adapters. Remember: Just because you already have the motor, does not mean that it is a great swap.

interesting first post, read this too:
http://www.naxja.org/forum/showthread.php?t=80053
lots of information here and that will help you sort through it

I'm kinda sad to hear of someone destroying a 5.9 ZJ.... but I guess it is better off in an XJ. get the hood vents.