Holley Ford V8 Injector Harness
Highlights
- Compatible With Holley Systems
- Designed For SB Ford Engines
- Premium Components
- Enhances Performance
Holley Ford V8 Fuel Injector Harness for HP EFI and Dominator EFI Systems.
If you're looking to take your small-block Ford engine to the next level, the Holley Ford V8 Fuel Injector Harness (558-209) for HP EFI and Dominator EFI Systems may be just what you need. This versatile harness is compatible with Holley's top-of-the-line EFI systems and fits Ford EV1-style injectors. Its premium components are designed to enhance your engine's performance, giving you the power and consistency you need to dominate the competition. Whether you're running a 5.0L or a 5.8L Windsor powerplant, this harness is a must-have for any serious racer.
Features and Benefits:
- Designed for use with fuel-injected small-block Ford engines
- Compatible with Holley EFI HP and Dominator EFI systems
- Fits Ford EV1-style injector
- Versatile harness
- Made from premium components
- Enhances performance
Vehicle Fitment:
- 1965-1995 Mustangs
- 1948-1979 F-100s
- 1966-1977 Broncos
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Electrical & Wiring, Mustang EFI Engine & Injector Harnesses, Ford Bronco Parts, Ford F-100 Parts
Only for use on pre-pollution controlled vehicles: This product can be used on vehicles that were manufactured before emissions control regulations were imposed. Pre-pollution vehicles are defined as:
- 1965 and older U.S. manufactured California certified vehicles
- 1967 and older U.S. manufactured federally certified vehicles
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years:













