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Unread 08-25-2013, 05:15 PM   #1
yj4wheeler1990
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Join Date: Sep 2012
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Engine swap questions

I have the 2.5l 4cylinder and I want to put in the 4.0 6 cylinder. I was wondering what I need to get to do it. Does the transmission from the 2.5l hook up to the 4.0 ( I Assumme it doesn't ),what is the process you have to do for the swap. And what are the parts I would need. How much would this cost too ( I was thinking it be round 2k, but could it be done cheaper. I'm on a collage budget) Thanks for any help

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Unread 08-25-2013, 08:36 PM   #2
strvger01
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1966 CJ5 
 
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what year jeep do you have? they had 2 different 2.5L engines that were used. 1980-83's used the "Iron duke" Pontiac engine. after that they went to the AMC 2.5L 4 cyls.
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Unread 08-28-2013, 11:27 AM   #3
gward
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Join Date: Jun 2013
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Since we are talking about engine swaps. I have an 86 xj that I placed a 4.0l from a 95 xj, but I seem to have a problem. I used thee
Engine mounts from 95 xj, yet I try to install transmission mount and the style I have is 5 inches off. Do I need a new style mount or is my engine to far back. Need some serious replies.
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Unread 08-28-2013, 07:22 PM   #4
uberxj92
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1992 XJ Cherokee 
 
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Quote:
Originally Posted by yj4wheeler1990 View Post
I have the 2.5l 4cylinder and I want to put in the 4.0 6 cylinder. I was wondering what I need to get to do it. Does the transmission from the 2.5l hook up to the 4.0 ( I Assumme it doesn't ),what is the process you have to do for the swap. And what are the parts I would need. How much would this cost too ( I was thinking it be round 2k, but could it be done cheaper. I'm on a collage budget) Thanks for any help
What transmission do you have? If its the ax5 Peugeot then the 4.0 may wear it out faster than you want. The ax15 is a good swap.
If you have the amc 2.5 the 4.0 & 4.2 should work. Save your stock bell housing.
You'll need the sensors, wiring harness and, ecu from the donor 4.0 vehicle.
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Unread 08-28-2013, 07:32 PM   #5
uberxj92
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1992 XJ Cherokee 
 
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That sounds right. What engine Tranny combo did you have?
84-86 xj had a 4 cylinder diesel (rare), a 2.5, and a 2.8 Chevy turd.
87 xj had those engines and a 4.0 option.
88-90 had 2.5 & 4.0 renix.
91-01 2.5 (rare) & 4.0 ho.
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