4.0 EFI, 5spd, CJ5... Possible? - JeepForum.com
LinkBack Thread Tools
post #1 of 2 Old 07-22-2009, 12:49 AM Thread Starter
Web Wheeler
Cutlass327's Avatar
1978 CJ5 
Join Date: Jan 2009
Location: Beach City
Posts: 6,039
4.0 EFI, 5spd, CJ5... Possible?

Ok, tired of the carb - outdated, inefficient, pain in the *** fuel mixer. I want an EFI engine, and I want a 5spd. Is this possible? I know they say the 5spd is too long, but I also know that there are issues because of lifts and such that would complicate it and make the length a bigger issue. I am not gonna do a lift. I have a stock suspension with 31's. That is all I want. So, is it possible to get a 4.0/5spd to work? Wiring, details like that aren't an issue. Having a ds shortened or lengthened to fit, ok, I'll do it. The driveline of my CJ is all stock, so is the suspension. Figured I'd find a good donor TJ or whatever and just swap in the wiring and engine/trans/xfer. Axles if need be. Anyone ever do this? Any write-ups anywhere that I couldn't find (never have much luck with searching..) Thanks for any good info..


1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Cutlass327 is offline  
Sponsored Links
post #2 of 2 Old 07-22-2009, 06:09 AM
Registered User
2003 TJ Wrangler 
Join Date: Mar 2009
Location: Pennsylvania
Posts: 561
anything is possible with enough time, skill, and money. I would try and find a whole donor vehicle like an old XJ. this will give you an engine harness and all the engine accessories. I would Look for a 4.0 and an AX-15 or the NV3550 transmission. If you already have an I-6 then I'm pretty sure you can use your existing engine mounts. Another thing to consider is the fuel injection system runs at a much higher pressure so you'll need different fuel lines and fuel pump. Good luck if you do do this.... it would be a pretty sweet drivetrain! Strings
Strings72 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

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
4.56 gears with a 5spd? dlloyd443 Jeep CJ Forum 10 01-20-2009 06:38 PM
97 wrangler 4cyl 5spd tjcgramps2 Jeep CJ Forum 1 11-16-2008 09:39 AM
'80 304 into '84 258/5spd Gunrunner72 Jeep CJ Forum 4 12-07-2007 01:11 PM

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