Holley EFI Ford Modular 2 Valve EFI Harness Kit 558-505

Name: Holley EFI Ford Modular 2 Valve EFI Harness Kit 558-505
Brand: Holley Performance Products
SKU: 4007876
Price: 1618.99 USD
Availability: OnlineOnly

$1,618.99 ea

NEWARRIVING SOONEstimated Ship Date 10/14/2025 (If Ordered Today)

Model: 4007876

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Description Downloads Video Specifications Reviews (0) Product Q&A Related Products

This wiring harness interfaces a Holley EFI ECU to a 2V Modular Ford 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.

Features:

Harness Kit Includes: Main Power Harness, Ford Modular Main Harness, Ford V-8 Injector Harness, Ford Modular 2V Coil Harness, Coil Drivers
Simple Installation
Can be used with HP or Dominator ECU's

NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit. This kit is meant to be used in conjunction with an injector harness, a coil harness, and ignition modules.

Installation Notes:

NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit. This kit is meant to be used in conjunction with an injector harness, a coil harness, and ignition modules.

About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name	File Size
199r10724rev1.pdf	487.08KB
199r12028.pdf	369.54KB

Videos:

Specifications:

Emission Code	4
Harness Application	Ford
Ignition Type	2v Ford Modular
Injector Connector	Jetronic / Minitimer (Bosch)
Part Type	Fuel Injection Harness
Product Type	Harness Kit