98 4.0 5.2 swap - JeepForum.com
LinkBack Thread Tools
post #1 of 6 Old 07-19-2013, 02:17 PM Thread Starter
Registered User
1998 ZJ 
Join Date: Mar 2013
Location: McCune
Posts: 68
98 4.0 5.2 swap

I have a 98 laredo with the 4.0 in it. I've found a guy with a 97 5.2 that has been wrecked in the rear end that he is selling for 400 bucks. Assuming that the v8 and is in good condition, how hard would it be to swap it into my jeep? What all would I have to do in order for it to work? Everything I've found on here is just people bickering over whether or not to stroke out the 4.0 or swapping in a dodge engine. Thanks

KDStewart is offline  
Sponsored Links
post #2 of 6 Old 07-19-2013, 09:45 PM
Jeeples's Avatar
2000 WJ 
Join Date: Jul 2006
Location: forum/f310/
Posts: 6,928
It should be pretty straight forward since you'll have the engine, trans, mounts, wiring harnesses and ECU.

Your biggest issue may be that you're putting an older engine into a newer vehicle. Depending on your local emissions laws that may be a no-no, so I would look into before going any further.

His: '00 WJ 4.7 Limited- Some stuff

Hers: '03 WJ 4.7 Laredo- Some more stuff

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Originally Posted by wjjeep19 View Post
It is what Jeeples has *PARTIALLY* stated.
Jeeples is offline  
post #3 of 6 Old 07-19-2013, 10:17 PM
Registered User
1995 ZJ 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,480
everything needs to be swapped over. motor, trans, wiring, exhaust, etc. alot of work. but if youre hell bent on doing it, it can be done. personally i would just find a good one with a 5.2 already in it.

Reliability is relative
R.I.P. Ratmonkey
dnuccio is offline  
post #4 of 6 Old 07-19-2013, 11:59 PM Thread Starter
Registered User
1998 ZJ 
Join Date: Mar 2013
Location: McCune
Posts: 68
Well, my trans is gettin ready to bite the bullet anyway, my exhaust has leaks, and there are a bunch of other things that could be fixed a lot easier with the engine out. I just figured that if it was as straight forward as, taking old out and putting new in, it would probably be worth it since I'm going to end up doing it one piece at a time anyway. As far as emissions go, I live in rural Kansas where apparently your neighbor can't be gay but you can single handedly ruin the environment and get a high five, so I don't think it will be an issue. I would love to find a good 5.2 but everyone around here is trying to get rich off of craigslist so they aren't cheap and I don't have the money to drive 300 miles in any direction to go look at a vehicle. I haven't bought anything and I have other things to pay for before I could consider buying the wrecked jeep but I'd like to know as much as I can before I spend the money on it.
KDStewart is offline  
post #5 of 6 Old 07-20-2013, 12:01 PM
Registered User
1993 ZJ 
Join Date: Aug 2010
Location: Durango, Colorado
Posts: 124
It's a lot more effort than you think. Remember, it's not going to be just a motor swap. You are going to have to swap out the motor, transmission, exhaust, ECU, TCM, both axles if you want 3.73 gears, motor mounts, transmission mounts, etc. It's better to just find a jeep with a 318 in it already.
LunaMoona is offline  
post #6 of 6 Old 07-20-2013, 12:18 PM Thread Starter
Registered User
1998 ZJ 
Join Date: Mar 2013
Location: McCune
Posts: 68
Yea, that's what the other two said. There are no cheap 5.2's around here and I already have 3.73 gears. I willing to put in the work, I'm mostly concerned with how to do it
KDStewart is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome