MENU
558-103 - LS2/3/7+ (58x/4x) Engine Main Harness - default Image
558-103 - LS2/3/7+ (58x/4x) Engine Main Harness - additional Image
Holley - EFI Tech: Main Harness OverviewYouTube Button
Holley - EFI Tech: Basic Wiring TechniquesYouTube Button
Holley - EFI Tech: Connecting to BatteryYouTube Button
Holley - EFI Tech: Proper GroundingYouTube Button
Holley - EFI Tech: Finding 12 Volt PowerYouTube Button

LS2/3/7+ (58x/4x) Engine Main Harness

LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI

PART# 558-103

Be the first to write a review
$484.95   Suggested Retail
$435.95   Your Price
Free Shipping
In Stock  
Qty: 
Add to Wish List

Starting at $39 a month with Learn More

Overview

This harness has been designed to interface with 58x crank and 4x cam sensors. These engines are commonly found in 2006+ Year Model vehicles with LS variants such as the: LS2,LS3,LS7,L76,L92, and L98.

Specs

BrandHolley EFI
Crank Reluctor58x
Emission Code4
Harness ApplicationLSX
Harness TypeMain
Product TypeLS Main Engine Harness
Part Number558-103

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Tech Resources

Holley EFI Dealers
Do you need a custom kit built for your application? Do you need a system installed and tuned? Click here to find the Holley EFI dealer in your area!
Wiring Shop Quick Reference Guide
Wiring Shop Quick Reference Guide
We Suggest
    Also Bought
      Reviews

        *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

        Some parts are not legal for use in California or other states with similar regulations.

         X  Ford 347 Giveaway
         X  Ford 347 Giveaway