I need some advice.
Thread Starter
Senior Member
Joined: Oct 2008
Posts: 892
Likes: 0
Year: 1985
Model: Cherokee
Engine: 2.5 V6
Hey guys! I have a 85 Cherokee Chief and it has the 2.8 liter and I really would like to have a more powerful engine without having to do to many mods for a new one to fit. I just got this Jeep and it looks like maybe the engine was on fire at one point in time and it has a few problems when its idling such as missing and just flat out dying on me. My rig is a bit rough and honestly thats how I want to keep it, I want to use it mostly as a trail rig but I still would like to be able to take it on the road when needed. I would like to keep this whole engine swap as easy and cheap as possible, I'm in college and don't have too much time or money at the moment. Does anyone have any ideas how to get more power out of my chief? I would even settle on some ideas as to how to fix up this engine. At this point I'm looking for ANY advice you could give me!
Thanks a lot in advance! Happy Wheeling!
Thanks a lot in advance! Happy Wheeling!
CF Veteran
Joined: Apr 2008
Posts: 2,340
Likes: 8
From: Burlington, NC
Year: 1994...mostly...
Model: Cherokee (XJ)
Engine: 4.0L I6 HO, Lot's of Bolt Ons
I hate to say it but the 2.8L is not the best motor. I know people usually swap them for the GM 3.4L - here's a write up
http://jeep.off-road.com/jeep/articl....jsp?id=277008
a search is Google for 2.8L to 3.4L will turn up a lot more
you could always go for a 4.0 but most people go the 3.4L route. I'm guessing because there both GM motors and it requires less work. Good luck if you plan on going the motor swap route.
http://jeep.off-road.com/jeep/articl....jsp?id=277008
a search is Google for 2.8L to 3.4L will turn up a lot more
you could always go for a 4.0 but most people go the 3.4L route. I'm guessing because there both GM motors and it requires less work. Good luck if you plan on going the motor swap route.
Thread Starter
Senior Member
Joined: Oct 2008
Posts: 892
Likes: 0
Year: 1985
Model: Cherokee
Engine: 2.5 V6
You see the thing is, my boyfriend got it for me for my birthday and I'm IN LOVE WITH IT!!!! I couldn't just give up and junk the poor thing. Thanks though...
CF Veteran
Joined: Feb 2008
Posts: 1,665
Likes: 10
From: Elizabeth WV
Year: 1998
Model: Cherokee
Engine: 4.0
That's pretty much the only choice you got. My first xj was a 2.8 with 4 and 33's and it just didn't have enough motor. I researched every option for a engine swap and finally just sold it and bought a 4.0 jeep. The 3.4 liter swap is very doable though but even with the swap you'll never get the torque you can get out of a 4.0.
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Thread Starter
Senior Member
Joined: Oct 2008
Posts: 892
Likes: 0
Year: 1985
Model: Cherokee
Engine: 2.5 V6
Someone told me that I could do a swap for a 4.9L V8. I haven't looked into it much seeing as how this guy told me right before I stumbled into my dorm to pass out but I will do so today after my classes. What do ya'll think about that? If that would be possible I think I would have a pretty mean cherokee chief on my hands!
Renix Super Guru
Joined: Mar 2008
Posts: 24,653
Likes: 19
From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Think a larger V8 is going to not be an easy or cheap swap. You would prolly need a tranny and transfercase with the proper front driveshaft drop.
But a much wiser man than me once told me "Never fall in love with something that cannot or does not return the favor."
Edited to add: As a father of two daughters, a husband to an awesome woman, and an admirer of all things female, I am encouraged that you want to bust knuckles and get grease on ya, as a female. We need more of that!!!
Last edited by 120mm; Oct 23, 2008 at 08:15 AM.
CF Veteran

Joined: Mar 2008
Posts: 2,649
Likes: 3
From: Salem Virginia
Year: 1998
Model: Grand Cherokee (ZJ)
Engine: 4.0
Don't know if this will help or not:
http://members.shaw.ca/betterthanyou...ine%20swap.htm
Here is another site you might find handy:
http://60degreev6.com/
http://members.shaw.ca/betterthanyou...ine%20swap.htm
Here is another site you might find handy:
http://60degreev6.com/
cherokeebaby - I'm 3 hours from you at Fort Leavenworth. A little too far to come help with the swap, when it happens.
But who knows.
Have you changed plugs and wires?
But who knows.
Have you changed plugs and wires?


