Engine Upgrade - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 07-02-2001, 12:20 PM
Posts: n/a
Engine Upgrade

Hi all. I have a '91 Wrangler with a stock 2.5L engine and 5 speed manual transmission. The engine has over 132,000 miles on it and is starting to show symtoms of some fairly major problems. I've search this forum and found some great suggestions and ideas that will help me keep the current engine running for another 6 to 9 months. At that time I would like to replace the current engine with a 4.0L I6. Finally we get to the questions! How straight forward is this swap? Will everything line up with my current transmission? Will I be able to keep the same gear ratios or will I need to change that too? Will it line up with the current engine mounts? Any and all information regaurding this procedure would be greatly appreciated. Including links to websites that have info on this topic. Thanks all!

Sponsored Links
post #2 of (permalink) Old 07-02-2001, 12:56 PM
Join Date: Jun 2001
Posts: 1,705
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Engine Upgrade

Unless you have a lot of other mods into your rig, it will be a lot cheaper to go out and buy another Jeep with the 4.0 already in it. The nightmare you would have to go through - trans. swap, wiring, computer, motor mounts, radiatior, etc. - it's just not worth the time and money.

85 CJ-7 258/T176/D300 Scout D44s F&R with Lock-Rites and 4.56 gears. 4" springs with lift shackles 36" SS TSL Radials Hella Rallye 4000s for guiding small planes into the woods
AllLockedUp is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups 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 email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not 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 On
Pingbacks are On
Refbacks are On

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