C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

LS2 Swap wiring help

Thread Tools
 
Search this Thread
 
Old Apr 17, 2026 | 06:55 PM
  #1  
Grateful Dad's Avatar
Grateful Dad
Thread Starter
Cruising
All Eyes On Me
 
Joined: Nov 2025
Posts: 13
Likes: 8
From: Ann Arbor, MI
Default LS2 Swap wiring help

hello all
I am in the process of swapping in a 2006 LS2 from a manual Corvette going into a 1974. I am at the part where I am trying to take the stock wiring harness and convert it to a standalone use for my project. most of the information I am finding (LT1tech.com) is for truck versions of the platform, and or not specific enough for the harness I have. I am wondering if anyone here has the mapping/ pinouts for this engine and/ or has done a similar swap and knows where the skeletons lay. the issue I am having is the pinouts I am finding are close but not exact and I don't what to pull the wrong thing. additionally there is the sub harness that runs thru it that has 2 twisted pairs (1- yellow/grey, 1- yellow/black w/stripe) that run to what I think is the MAF/IAT terminal along with the 4 wires going back to the black Connector for the ECU. any help you can provide would be appreciated.
Attached Images    
Reply
Old Apr 17, 2026 | 07:20 PM
  #2  
M6Speed's Avatar
M6Speed
Cruising
Liked
 
Joined: Apr 2018
Posts: 11
Likes: 4
From: Indiana
Default

Check out the website charm.li
It has had several diagrams and pinouts ive needed over the years
Reply
Old Apr 17, 2026 | 08:10 PM
  #3  
peters220's Avatar
peters220
Racer
10 Year Member
Veteran: Air Force
Liked
Loved
 
Joined: Nov 2013
Posts: 252
Likes: 84
From: Uhrichsville Ohio
Default

Look here. JP https://www.corvetteforum.com/forums...900d1486356178
Reply

Get notified of new replies

To LS2 Swap wiring help





All times are GMT -4. The time now is 01:18 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE