Ford Modular 4 Valve EFI Harness Kit


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SKU: 558-506 Holley

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This wiring harness interfaces a Holley EFI ECU to a 4V Ford Modular engine. It is meant to be used in conjunction with an injector harness, a coil harness, and ignition modules. Most stock sensors are used with this harness.


  • Harness Kit Includes: Main Power Harness, Ford Modular Main Harness, Ford V8 Injector Harness, Ford Modular 4V Coil Harness, Coil Drivers
  • Simple Installation
  • Can be used with HP or Dominator ECU's