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Holley Dominator & HP EFI LS1 Main Harness

510-558-102

made in usa

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Holley 558-102
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$458.95
Dominator & HP EFI LS1 Main Harness
Free Shipping - Estimated to ship directly from the manufacturer on 07/29/21
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I have 5.3 out of 1999 Sierra gmc that I'm going to lsa swap. Will this harness work as long as I get an hp ecu or do I need the 58x

Asked by: Jory
This harness will work with the proper ECU and matching reluctor.
Answered by: Rusty B
Date published: 2018-08-01

Will this work with a cable drive throttle body

Asked by: Jory
Yes, you can use this with a standard style throttle body.
Answered by: Rusty B
Date published: 2018-06-26

Can I use this harness with a 5.3 lm7

Asked by: Jory
This will work with any LS1 series engine.
Answered by: Rusty B
Date published: 2018-05-02

Will this harness work for a boosted 5.3

Asked by: Jory
Yes that will, but it is made to be used with an holley ECU.
Answered by: BrandonJ
Date published: 2018-04-28
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Some parts are not legal for use in California or other states with similar laws / regulations

Motor Vehicles

WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

Tools:

WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

Electrical Cords

WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.