1999 TJ with LS Power (5.3 LM7) - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > General Jeep Forums > Jeep Builds > 1999 TJ with LS Power (5.3 LM7)

Dual Color LED Light Bars White/AmberTJ 5.25" Speaker Adapters - NalinMFGAlloy USA Still Available

Reply
Unread 07-26-2010, 11:03 PM   #1
1998tjsport
Registered User
2003 TJ Wrangler 
 
Join Date: Nov 2008
Location: Long Island
Posts: 470
1999 TJ with LS Power (5.3 LM7)

So finally after 3 years of jeep ownership here is my very own build thread. I had a 1998 6 cyl 5 speed for 3 years. I sold it about 3 months ago and regretted it ever since. I loved everything about it except that it was slow as hell. So one month ago my good friend blew the motor on his 99 4 cyl and my opportunity for a jeep with some real power presented itself. I bought the truck for 1500 and flat towed it to my house and so begins the LS jeep build.

The Build is as follows-

5.3 LM7 out of an 01 Tahoe with 80k (rated at 285hp/335tq)
I will probably put a small cam in as well and bump up the power a little

AX15 transmission completely rebuild by Rockland Standard Gear
HD231 Transfer case from Rockland Standard Gear

Stock rear for now (ford 8.8 after the truck is running and driving and the bugs are worked out)

It has a 2.5 inch lift as it sits, it may get 33's but for now it will sit on the 31's I bought it with.

All the motor mounts and adapters came from Novak Conversions and they will also be modifying the GM wiring harness as well.

The install beginning to end will be done by myself and a few of my friends in my garage when I'm not working or out with my chick haha.

Well enough of the talk onto the good stuff, the pics........

The Jeep the day I picked it up


Blown Motor



New Power in the back of my truck


Now a few of the small progress on the build, It will probably be about 2 months until its all done.

Grill is off and entire drivetrain is out, the old wiring harness in the jeep has been modified removing all of the 4cyl components. I need to neaten it all up, but I am waiting to get the GM one back first......




No Drive train


Old AX5 (for sale) and the 231 (being build now)


New 5.3 with the wiring harness removed sitting and waiting for its new home


Good shot of the shop (note my friends working very hard)


1998tjsport is offline   Reply With Quote
Unread 07-27-2010, 08:08 PM   #2
mightydog78
Registered User
2013 JK Wrangler 
 
Join Date: Jan 2009
Location: Charlotte/Winston-salem, NC
Posts: 1,989
hmm ill always subscribe to a good engine swap thread
__________________
2013 JKU Sahara

Charlotte, NC / Southport, NC

Mechanical Engineer
mightydog78 is offline   Reply With Quote
Unread 07-27-2010, 10:09 PM   #3
Capown
Registered User
1997 TJ Wrangler 
 
Join Date: Jun 2010
Location: Corpus Christi Tx..
Posts: 40
Quote:
Originally Posted by mightydog78 View Post
hmm ill always subscribe to a good engine swap thread
Heck yes count me in My lil I6 is dieing on me also, about 30psi on number 5 running So I had to call around a used 4.0 750 from salvage yard with core, i was told a 5.3 would only be 875 w/harness I think im gonna have to go with the 5.3 and piece it together till the 4.0 dies
Capown is offline   Reply With Quote
Unread 07-27-2010, 10:13 PM   #4
jeepwrangler97
Registered User
1997 TJ Wrangler 
 
Join Date: Jul 2008
Location: FL
Posts: 3,609
Subscribed, engine swaps are fun to watch progress, they're also fun when you complete them
jeepwrangler97 is offline   Reply With Quote
Unread 07-27-2010, 10:30 PM   #5
1998tjsport
Registered User
2003 TJ Wrangler 
 
Join Date: Nov 2008
Location: Long Island
Posts: 470
Quote:
Originally Posted by Capown View Post
Heck yes count me in My lil I6 is dieing on me also, about 30psi on number 5 running So I had to call around a used 4.0 750 from salvage yard with core, i was told a 5.3 would only be 875 w/harness I think im gonna have to go with the 5.3 and piece it together till the 4.0 dies
That was the exact reason for getting the 5.3. This one has 80k on it and I paid 600 for the motor and harness and another 100 for the computer. Only thing it didnt have was an alternator and PS pump which I got for 40 each. So all and all 780 bucks complete. Should be alot of fun when its all done too.....
1998tjsport is offline   Reply With Quote
Unread 01-07-2011, 02:46 PM   #6
drummerchukb1
Registered User
1998 TJ Wrangler 
 
Join Date: May 2009
Location: charlotte
Posts: 262
keep us updated, i just forund a 2002 tahoe with the 5.3L and the entire drive train. so any feed back based on your build would be cool.
drummerchukb1 is offline   Reply With Quote
Unread 01-07-2011, 04:35 PM   #7
platinum5.9
Web Wheeler
 
platinum5.9's Avatar
2003 WJ 
 
Join Date: May 2006
Location: Olean, New York
Posts: 1,813
Love LS motors in tj's subscribed...
__________________
03 Grand Cherokee Limited-White/Agate-4.7HO/QD-OME HD springs-1" spacers-MX6 shocks-OME SS-IRO rear links-255/75/17 BFG muds-JK Moabs-Muffler Delete-Magnaflow Cats x3-V3 Projectors 35w 5000k HID and High/Low harness w/relays-IRO Premium Sliders-SOLID D30 Cover-Fawkes stand alone shackle tabs/3/4" black shackles http://www.jeepforum.com/forum/f197/...1/#post9902192
--Enchanted Mountain Off-road Crew--Olean NY
enchantedmountainoffroad@gmail.com
platinum5.9 is offline   Reply With Quote
Unread 01-08-2011, 12:49 PM   #8
1998tjsport
Registered User
2003 TJ Wrangler 
 
Join Date: Nov 2008
Location: Long Island
Posts: 470
Sorry for not getting back to this thread in a while. Couple of updates. I decided to pull the motor apart to have the heads milled and put a new cam in it, Should bump it about 50 hp which will be nice. I stripped the motor down to nothing and I painted the block red. The motor will probably go back together in the next week or 2 depending upon when Im working (I plow so the snow kills me). The transmission I decided to have built (ax15) and the transfer case got new HD chains and SYE. With in the next months I should be bolting the whole drive train together and trying to fit it in. Ill post up some pics in stuff soon.
1998tjsport is offline   Reply With Quote
Unread 01-08-2011, 01:06 PM   #9
drummerchukb1
Registered User
1998 TJ Wrangler 
 
Join Date: May 2009
Location: charlotte
Posts: 262
what is included in the ax-15 rebuild? what / where did you get an adapter for the 5.3L to the ax-15?
drummerchukb1 is offline   Reply With Quote
Unread 01-08-2011, 04:41 PM   #10
1998tjsport
Registered User
2003 TJ Wrangler 
 
Join Date: Nov 2008
Location: Long Island
Posts: 470
As far as the rebuild goes I had a local shop take a working AX15 and they are going through it and replacing anything worn and cleaning it ect.... The adapter is from Novak and it adapts a chevy bell housing to an AX15 trans....
1998tjsport is offline   Reply With Quote
Unread 01-08-2011, 04:48 PM   #11
Hendrix
TJOTY 2013
 
Hendrix's Avatar
1997 TJ Wrangler 
 
Join Date: Apr 2009
Location: Nashville
Posts: 4,628
Subscribed. For future reference. I love ls-tjs
Hendrix is offline   Reply With Quote
Unread 02-07-2011, 10:28 PM   #12
Dentedvw
Registered User
2004 TJ Wrangler 
 
Join Date: Nov 2010
Location: Bountiful, UT, Utah
Posts: 141
And, how is it going now?
__________________
I can only give you what I think you said you thought you wanted.
Dentedvw is offline   Reply With Quote
Unread 04-11-2011, 10:23 PM   #13
1998tjsport
Registered User
2003 TJ Wrangler 
 
Join Date: Nov 2008
Location: Long Island
Posts: 470
Sorry for the long time before any updates, blew the rear up in my DD and it cost me some play money for a while ($1800 ), that coupled with this ****ty winter of plowing every week put the jeep on hold for a little. Anyway I have been back at it and have a few update pics. I just picked up some nice MT 33x12.5 with some D windows for $250 and I decided to go a little over board with the motor. I pulled it apart completely and had the heads milled .035 and put some new Cometic head gaskets. Compression should be right around 10 to 1. I had new PAC springs put on and had the heads gone over and all the clearances and seats checked. Then I bought a new Texas Speed 220/220 cam and some ls7 lifters and put those in. Melling high volume oil pump and a double roller timing chain and some ARP head bolts to seal it all up. Also shot it with some high heat red and clear to brighten it up. The engine now should make considerably more power and sound BAD *** too. Trans is almost done and its just a stock rebuild with some upgraded stuff (not sure what exactly) and the Tcase is a NP231 with a SYE and heavy duty chains. Hopefully I will have this thing running in 2 months. Enough B.S. here is a few teaser pics.
33's

Engine apart

All buttoned up, it almost looks like I know what I am doing haha
1998tjsport is offline   Reply With Quote
Unread 04-12-2011, 01:33 AM   #14
1STONER
Registered User
 
Join Date: Mar 2004
Location: Memphis
Posts: 187
Wow damn good start. The 5.3 is a fun swap.
__________________
06 Rubicon
[URL="http://www.jeepforum.com/forum/f22/stoners-build-thread-06-rubi-1065375/"]build thread [/URL]
5.3, 37 MTR, stretch, 8.8, ect...
1STONER is offline   Reply With Quote
Unread 04-12-2011, 11:01 AM   #15
1998tjsport
Registered User
2003 TJ Wrangler 
 
Join Date: Nov 2008
Location: Long Island
Posts: 470
Quote:
Originally Posted by 1STONER View Post
Wow damn good start. The 5.3 is a fun swap.
Thanks I just looked at your thread, looks great man. Do you have any more detailed pics of the auto meter setup, I wanna do the same thing.....
1998tjsport is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.