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2.8 v6 mods?

Old Jul 9, 2012 | 05:54 PM
  #1  
animalbmx9's Avatar
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From: Oregon City, OR
Year: 1997
Model: Cherokee
Engine: 4.0 i6
Default 2.8 v6 mods?

What are some mods I can do to give some power to my 2.8 v6?
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Old Jul 9, 2012 | 05:56 PM
  #2  
xj_maniac_newb's Avatar
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From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
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Replace it with a 3.4.

http://www.lunghd.com/Tech_Articles/...Project_XJ.htm
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Old Jul 9, 2012 | 09:07 PM
  #3  
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From: Provo, UT
Year: 2000
Model: Cherokee
Engine: 4.0L I6
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yup, the 3.4 is a pretty decent little engine. i had one in my '94 camaro. it wasn't a speed demon by any means, but it's better than the 2.8. there's a moderate aftermarket support for the 3.4, also. there's a whole forum dedicated to that engine, too. do a search for 60* v6, i don't remember the forum name. you can do a top end swap from any car with the newer 3.4 (grand am and a few other cars) and get close to 190 HP with factory parts.
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Old Jul 9, 2012 | 11:05 PM
  #4  
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From: SLC, Utah
Year: 1999
Model: Cherokee
Engine: 4.0L
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Originally Posted by xj_maniac_newb

I think a 3.8L or a 4.3 would be a better option for a swap if you want to stay with the GM engines , an keep it a V6 the 3.8 and 4.3 have more aftermarket support than the 3.4L
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Old Jul 9, 2012 | 11:11 PM
  #5  
xj_maniac_newb's Avatar
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From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
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Yes, but of all the swaps the 3.4 is easiest. You basically switch blocks and a few other goodies and the rest you use the 2.8 stuff.
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Old Jul 9, 2012 | 11:32 PM
  #6  
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
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Comp Cams used to make a cam kit and roller tip rockers for the 2.8, but you're still stuck with a junk carb and an engine that leaks more oil than what was spilled in the Gulf.
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Old Jul 9, 2012 | 11:35 PM
  #7  
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From: Provo, UT
Year: 2000
Model: Cherokee
Engine: 4.0L I6
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swapping a 3.4 in place of a 2.8 would probably be a weekend job and those engines are dirt cheap, like in the $200-300 range. in fact, if you have a 2.8 it's almost stupid to NOT do the swap it's so easy.
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Old Jul 10, 2012 | 03:01 AM
  #8  
animalbmx9's Avatar
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From: Oregon City, OR
Year: 1997
Model: Cherokee
Engine: 4.0 i6
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Thank you for all the suggestions for the swap I might just have to look that more
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Old Jul 10, 2012 | 08:25 AM
  #9  
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From: Lantana, Fl
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
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Originally Posted by Bustedback
Comp Cams used to make a cam kit and roller tip rockers for the 2.8, but you're still stuck with a junk carb and an engine that leaks more oil than what was spilled in the Gulf.
Edelbrock makes a manifold to fit a better 2 bbl Holley Carb and a cam kit for the 2.8. I put one in my 66 M38A1 and its not a speed demon but gets it where it needs to go. Im also on 33s w/4.10 gears in the stock D44 military axles.
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Old Jul 10, 2012 | 10:22 AM
  #10  
big_ang's Avatar
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From: Mississauga
Year: 1998
Model: Cherokee
Engine: 4.0
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I put a 3.4 in my MGB. I used the edelbrock intake with a holly 390 cfm 4bbl carb. The intake is 2 peices, you can get a 2bbl or 4bbl top. It's got about 220hp. If you go 3.8/4.3, you might as well do a v8 swap. You need an iron head 3.4 like the ones found on the 93-95 camaro, the 3400 fwd engine has aluminium heads. Carb is way easier then trying to wire an injected engine.
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Old Jul 10, 2012 | 11:26 AM
  #11  
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From: Trujillo Alto Puerto Rico
Year: 88
Model: Cherokee
Engine: I6
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the best mod is an engine swap. its the ONLY mod
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Old Jul 10, 2012 | 12:02 PM
  #12  
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From: Lantana, Fl
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
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To each his own. Everyone has positive and negative for everything. Lets keep the suggestions coming. And Yes, a 4.0 or 4.2 will fit in our engine compartment. Its tight, but it fits. I have a 4.9L stroker in my 85.
Attached Thumbnails 2.8 v6 mods?-forumrunner_20120710_130126.jpg   2.8 v6 mods?-forumrunner_20120710_130144.jpg   2.8 v6 mods?-forumrunner_20120710_130202.jpg  
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