Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

04 GTO LS1 4 wire harness help

Thread Tools
 
Search this Thread
 
Old Oct 11, 2014 | 12:56 PM
  #1  
S13LS1's Avatar
Thread Starter
Registered User
 
Joined: Oct 2014
Posts: 1
Likes: 0
Default 04 GTO LS1 4 wire harness help

Hello all, I will start off by saying I have a motor set out of a 04 GTO with a complete harness, ecu, and t56 trans. What I'm trying to do is convert the harness to a 4 wire setup. I'm putting the engine in my S13. I know they make harnesses that will work but I eliminated the chassis harness and want to run everything off a switch panel for simplicity. I have researched and haven't found too much on how to convert the harness. I have found info on the lt1 swap site for my specific harness but not too sure on how to exactly make it 4 wires and where to put fuse blocks etc. I haven't been able to find a specific write up step by step on how to do this. Does anyone have insight on how to convert my harness. I'm looking for a guide that can walk me through the process. I have the factory pcm and plan on using it, not buying the f body ls1 pcm. I'm located in so Cal if that helps anyone. I've found companies such as speartech that makes harnesses. Obviously I would prefer to do it on my own. Any thoughts would help and be appreciated.
Reply
Old Oct 11, 2014 | 09:54 PM
  #2  
Paul Bell's Avatar
That's MISTER MODERATOR
20 Year Member
Photogenic
Liked
Loved
iTrader: (9)
 
Joined: Nov 2005
Posts: 7,615
Likes: 65
From: NYC
Default

Welcome to LS1tech!

This is the internal engine section. You know, rods, cranks, oil pumps.....

We have a super GTO section, you'll find great help over there. There's also a conversions section that may be of interest to you.
Reply




All times are GMT -5. The time now is 10:18 PM.

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