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Holley EFI

Holley EFI 558-103 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

Holley EFI 558-103 LS2/3/7+ (58x/4x) Engine Main Harness

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$563.95
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4

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.

    See Emissions Details
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.
Brand Holley EFI
Emission Code4
Product TypeEngine Main Harnesses
UPC090127666739
Manufacturer Part Number558-103
Part Number558-103
4

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

Instructions for 558-103
EFI selection chart
Wiring Diagram
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