Engine swap information? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-10-2014, 07:10 PM   #1
Newb
 
Join Date: Feb 2014
Location: Lawrnce Ks
Posts: 10
Engine swap information?

05 LJ with the I-6, OD automatic. I am thinking about swapping in a Chevy FI v-8 into the Jeep. I've had Chevy stroker motors in my CJ's years ago and just miss the power. But this time I just want a stock 350 with fuel injection.
Is swapping a v-8 into a LJ more extensive than the old CJ's?? What engine would you guys recommend? Wiring harnesses?? And a rough estimate, of cost I guess with a used engine. Need to start saving my money to get this done. Oh and I know someone will ask, it has Dana 44 in the rear, 4.88 gears and a Detroit in the rear. Thanks for any help!! Respects!
Robin

Rlm2550 is offline   Quote Quick Reply
Old 05-10-2014, 09:25 PM   #2
Jeeper
 
DoubleOught's Avatar
 
Join Date: Feb 2014
Location: Nashville GA
Posts: 1,166
The swap to and SBC probably isn't much different than what you are accustomed to in the old CJs except for incorporating the appropriate ECM and harness for the engine of choice. You could use a truck Vortec, a Camaro or Vette TPI or many folks are using the new LS motors now. I have a good wheelin friend putting a 5.3 in a 98 now and know of another guy who just had one put in a 93 YJ. I believe Advance Adapters and/or Novak Conversions will have all of the conversion pieces you need.

DoubleOught is offline   Quote Quick Reply
Old 05-10-2014, 11:15 PM   #3
Jeeper
 
Join Date: Nov 2010
Posts: 204
You'll love the LS motor swap. I've been driving my 6.0/4l80e conversion now for about a month and it's bad ass.
DPD06 is offline   Quote Quick Reply
Old 05-10-2014, 11:42 PM   #4
Jeeper
 
Junky_One's Avatar
 
Join Date: Sep 2013
Location: Highwood
Posts: 496
Find a donor Tahoe with the 5.3 vortec. Power on the cheap. It's another 250000+ motor that's pretty much compatible with most internals since the 60's when the 350 came out. Plus with today's modding community's you could stroke it for a 383 and keep the injection reliability. Either that or drop 10,000 on a crate 392 srt8.
__________________
Jeeps never get stuck or broke. Just parked in odd places for an indeterminate length of time.
Junky_One is offline   Quote Quick Reply
Old 05-11-2014, 06:23 AM   #5
Newb
 
Join Date: Feb 2014
Location: Lawrnce Ks
Posts: 10
I've looked thru the Advance and Novak websites and see nothing about adapting the CHevy engines to the transmission in my Jeep? Is this not done? Or did I miss it somewhere? Thanks!
Robin
Rlm2550 is offline   Quote Quick Reply
Old 05-11-2014, 06:49 PM   #6
Jeeper
 
DoubleOught's Avatar
 
Join Date: Feb 2014
Location: Nashville GA
Posts: 1,166
Not sure if you have the auto or a manual but don't think either of them are really strong enough for the V8 motor. The NP231 tcase should still be ok.
DoubleOught is offline   Quote Quick Reply
Old 05-11-2014, 06:59 PM   #7
Jeeper
 
DoubleOught's Avatar
 
Join Date: Feb 2014
Location: Nashville GA
Posts: 1,166
Both of the guys I know with the 5.3s are using 4L80E autos.
DoubleOught is offline   Quote Quick Reply
Old 05-12-2014, 06:48 AM   #8
Jeeper
 
Join Date: Nov 2010
Posts: 204
Are you planning on keeping your 42rle? I would strongly suggest going with the 4l80 or 60. I have your same rig and the stock auto was having a hard enough time not hearing up with the extra lower from a Ripp supercharger kit. I ended up selling mine with my motor and used that towards my swap. If you do go with an 80e go ahead and get the TCI lower planetary fear set for it. The 80 is a tank compared to the 60 only drawbacks are higher gear (2.42 vs 3.06 in the 60) and a .75 overdrive compared to a .70. I'm geared at 4.88s on 35" tires and in Texas we have 70 to 85 on the highway. I'm running about 2400 at 70 so I'll be going with 37s next tire change.

My 80 hasn't seen temps higher than 160 on long trips and normally stays between 125/140. It's having no problem keeping up with my 6.0 and pushing my jeep around.
DPD06 is offline   Quote Quick Reply
Old 05-12-2014, 01:22 PM   #9
Newb
 
Join Date: Feb 2014
Location: Lawrnce Ks
Posts: 10
Thanks guys, Im taking notes esp fromDPD06 good info!!!

Rlm2550 is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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.



Thread Tools

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 Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 11:51 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC