Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Ls harness questions

Thread Tools
 
Search this Thread
 
Old Dec 10, 2011 | 01:06 PM
  #1  
Danny Thomas's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2010
Posts: 52
Likes: 0
Default Ls harness questions

Got a 98 ls with harness. Was thinking of reworking harness over getting a new conversion one. It doesn't look that complicated with the right diagram to follow. Question being is do I need another fuse block to wire into for all power or use car block. Are there any other issues that I need to know or should I just get spear tech or someone else to rework harness. Also who have you used in reworking with a reasonable cost plus could reprogram ecm
Reply
Old Dec 10, 2011 | 08:01 PM
  #2  
Moter's Avatar
Launching!
iTrader: (20)
 
Joined: Apr 2011
Posts: 260
Likes: 7
From: Hutto Tx
Default

http://www.stevesnovasite.com/forums...d.php?t=152458
Reply
Old Dec 11, 2011 | 10:03 PM
  #3  
sdetweil's Avatar
Staging Lane
 
Joined: Sep 2011
Posts: 50
Likes: 0
Default

Originally Posted by Danny Thomas
Got a 98 ls with harness. Was thinking of reworking harness over getting a new conversion one. It doesn't look that complicated with the right diagram to follow. Question being is do I need another fuse block to wire into for all power or use car block. Are there any other issues that I need to know or should I just get spear tech or someone else to rework harness. Also who have you used in reworking with a reasonable cost plus could reprogram ecm
I use lt1swap.com to reprogram.. fast and inexpensive..

he's got great set of info on moding a harness.. I've done one and one to be started..

just take your time, I spent a week working a couple hours a night.. was my 1st time

Sam
Reply
Old Dec 12, 2011 | 12:18 AM
  #4  
salemetro's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Sep 2008
Posts: 1,120
Likes: 0
From: Salem/Keizer
Default

This might also help.

http://www.youtube.com/watch?v=tITS_..._order&list=UL

http://www.youtube.com/watch?v=UmgSe..._order&list=UL

http://www.youtube.com/watch?v=q6NBE..._order&list=UL



The truck harnesses are usually easier to find than the fbody ones....but you can make one out of pretty much any style.

Last edited by salemetro; Dec 12, 2011 at 12:34 AM.
Reply
Old Dec 12, 2011 | 08:00 AM
  #5  
psiconversion's Avatar
LS1Tech Sponsor
15 Year Member
iTrader: (5)
 
Joined: Feb 2007
Posts: 1,310
Likes: 11
From: Brick, NJ
Default

Danny,

Check this out.....here
__________________

Your Source for LSX Conversion Parts!
www.psiconversion.com

Ebay Store
Facebook/psiconversion
Instagram/psiconversion

'Dont Let EFI Pass You By!'
Reply
Old Dec 12, 2011 | 09:42 PM
  #6  
Danny Thomas's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2010
Posts: 52
Likes: 0
Default

Originally Posted by psiconversion
Danny,

Check this out.....here
Thanks ...I sent you a pm

Last edited by Danny Thomas; Dec 12, 2011 at 11:25 PM.
Reply
Old Dec 13, 2011 | 06:27 AM
  #7  
psiconversion's Avatar
LS1Tech Sponsor
15 Year Member
iTrader: (5)
 
Joined: Feb 2007
Posts: 1,310
Likes: 11
From: Brick, NJ
Default

PM Answered.
__________________

Your Source for LSX Conversion Parts!
www.psiconversion.com

Ebay Store
Facebook/psiconversion
Instagram/psiconversion

'Dont Let EFI Pass You By!'
Reply
Old Dec 18, 2011 | 01:38 PM
  #8  
Danny Thomas's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2010
Posts: 52
Likes: 0
Default

Do I need to have a more custom harness to retain gauge operation and other functions or can I use the computer that is on a 81 TTA to continue those operations and just get the basic start harness.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Dec 20, 2011 | 02:28 PM
  #9  
Adam123's Avatar
Launching!
iTrader: (1)
 
Joined: Apr 2011
Posts: 231
Likes: 0
From: Adamsville Tennessee
Default

I think that you can use tachometer but will have to get a converter for the speedo. You will use the tacho wire and maybe a resister. I'm swapping a LS into my 79ta, but I'm going with new guages so I haven't checked into this much.
Reply




All times are GMT -5. The time now is 05:57 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE