1985 2.8L v6 XJ
11-15-2018, 09:39 AM
#2
CF Veteran
To swap to a 4.0L you will need a donor vehicle. You will have to change just about everything including the transfer case. The best option is the Chevy 3.4L. That is pretty much a bolt in and can be gotten in various outputs depending on year. Speed parts are available also
07-11-2020, 09:20 PM
#5
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Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
Yes a 3.4L would be good but I think I was reading about some one putting in a supercharged 3800 V6 if you can put in that engine that would be a good 200 HP or more .
07-11-2020, 10:42 PM
#7
CF Veteran
Since you brought it up, yes a good swap but the expense and difficulty is right there with an LS1, which has about the same horsepower and much more common
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