558-314 HOLLEY EFI Modular Coil Harness Ford

Review HOLLEY EFI Ford 2v Modular Coil Harness for FORD

The Holley EFI 558-314 Ford 2V Modular Coil Harness is a high-performance, plug-and-play solution for Ford applications with 2-valve Modular engines, such as the 4.6L and 5.4L. This harness is designed to simplify the installation process of Holley's EFI systems and eliminate the need for custom wiring.

The harness features a robust design with a high-quality, UV-resistant outer cover that can withstand the rigors of automotive use. Each wire within the harness is color-coded and clearly labeled, making identification and connection a straightforward process. The harness includes all necessary connectors for the coil packs, crank sensor, cam sensor, and oil pressure sensor.

The Holley EFI 558-314 Ford 2V Modular Coil Harness is engineered to work seamlessly with Holley's EFI systems, such as the EFI AVS and EFI Dominator. The harness utilizes a standard 36-pin EFI connector, ensuring compatibility with a wide range of Holley EFI controllers.

Installation is simplified with a plug-and-play design, allowing for easy connection to the engine and EFI system. The harness is also compatible with factory wiring, allowing for a smooth integration into the vehicle's electrical system.

This harness is an essential component for any Ford 2V Modular engine application using Holley's EFI systems, providing a reliable and efficient power delivery to the engine. With its high-quality construction, clear labeling, and easy installation, the Holley EFI 558-314 Ford 2V Modular Coil Harness is an indispensable tool for any automotive enthusiast or professional mechanic.

The Holley EFI 558-314 Ford 2V Modular Coil Harness is a popular choice for those looking to upgrade their Ford 2V Modular engines with electronic fuel injection. Here are some potential pros and cons of purchasing this harness:

1. Designed specifically for Ford 2V Modular engines, ensuring a proper fit and function.

2. Utilizes Holley's EFI technology, which offers improved idle quality, better fuel economy, and increased power.

3. Includes a wide range of sensors and features, such as knock sensors, wide-band oxygen sensors, and adjustable fuel pressure regulator.

4. Plug-and-play design makes installation relatively easy for most DIYers.

5. Compatible with various Holley EFI controllers, offering flexibility and upgradeability.

1. Higher cost compared to stock or aftermarket mechanical fuel injection systems.

2. Requires a compatible EFI controller and wiring harness to function properly.

3. May require additional modifications or components, such as a fuel pressure regulator or fuel pump, for optimal performance.

4. Installation may require specialized tools and knowledge, potentially increasing the overall cost and time investment.

In conclusion, the Holley EFI 558-314 Ford 2V Modular Coil Harness offers numerous benefits, including improved engine performance, increased flexibility, and advanced features. However, it also comes with a higher cost, potential installation challenges, and the requirement of additional components and a compatible EFI controller.

If you are looking to upgrade your Ford 2V Modular engine with electronic fuel injection and are willing to invest the time, money, and effort required for installation, then the Holley EFI 558-314 harness may be an excellent choice for you. On the other hand, if you are looking for a more cost-effective and straightforward solution, consider exploring alternative mechanical fuel injection systems or delaying the EFI upgrade until a later time.

Details:

558-314 Ford 2v modular coil harness: 99-04 2 valve harness, for hp Efi dominate. Coil harness for 99-04 2 valve Ford modular 4.6 5.4l engines. Buyer pays return shipping. A signature is required on all ups orders over $750.

specifications ignitioncomp:

• for makes: Ford
• brand: Holley Efi
• mpn: 558-314
• part type: Coil Harness
• upc: 090127712894

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components

returns ignitioncomp:

• paid by: buyer
• policy: returns accepted
• time: 30 days

offer ignitioncomp:

• options: ship-to-home
• availability: in stock
• in stock #: 5
• price: $236.95
• item condition: New
• started: june 22, 2025
• sold #: 17

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shipping ignitioncomp:

• service: ups ground
• carrier: ups
• type: fixed
• transit: 4-7 days
• class: standard

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• rating: 99.0%
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• # reviews: 15125