Holley Main Wiring Harness - LS2/LS3/LS7 EFI — Holley HP/Dominator

SKU: BBVL_558-103
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Holley Main Wiring Harness for GM LS2, LS3, & LS7 ...Read More

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Sale price$583.95
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

Holley Main Wiring Harness for GM LS2, LS3, & LS7 Engines

Equip your Holley HP or Dominator EFI system with the correct wiring for your GM LS2, LS3, or LS7 engine using this dedicated Main Wiring Harness. Engineered for engines featuring a 58x reluctor wheel, this harness ensures seamless integration and reliable communication between your ECU and engine sensors. It's the perfect solution for LS swaps or performance builds requiring precise engine management.

Key Features:

  • Optimized for Holley HP and Dominator EFI systems
  • Direct compatibility with GM LS2, LS3, and LS7 engines
  • Supports 58x reluctor wheel configurations
  • Premium quality construction for lasting performance
  • Simplifies complex engine wiring installations

This high-quality harness is built to withstand the rigors of performance driving, featuring durable materials and secure connectors that prevent signal loss and electrical noise. Proper wiring is fundamental to achieving stable idle, accurate fuel delivery, and optimal ignition timing. By using a harness designed specifically for your engine and EFI system, you minimize potential points of failure and ensure your engine runs as efficiently and powerfully as possible. Trust GGCRACING for all your Holley EFI components and wiring needs.

Product Details

Product Description
Part Numbers
Sizing & Fit

Holley Main Wiring Harness for GM LS2, LS3, & LS7 Engines

Equip your Holley HP or Dominator EFI system with the correct wiring for your GM LS2, LS3, or LS7 engine using this dedicated Main Wiring Harness. Engineered for engines featuring a 58x reluctor wheel, this harness ensures seamless integration and reliable communication between your ECU and engine sensors. It's the perfect solution for LS swaps or performance builds requiring precise engine management.

Key Features:

  • Optimized for Holley HP and Dominator EFI systems
  • Direct compatibility with GM LS2, LS3, and LS7 engines
  • Supports 58x reluctor wheel configurations
  • Premium quality construction for lasting performance
  • Simplifies complex engine wiring installations

This high-quality harness is built to withstand the rigors of performance driving, featuring durable materials and secure connectors that prevent signal loss and electrical noise. Proper wiring is fundamental to achieving stable idle, accurate fuel delivery, and optimal ignition timing. By using a harness designed specifically for your engine and EFI system, you minimize potential points of failure and ensure your engine runs as efficiently and powerfully as possible. Trust GGCRACING for all your Holley EFI components and wiring needs.

Product Details

Product Description

Holley Main Wiring Harness for GM LS2, LS3, & LS7 Engines

Equip your Holley HP or Dominator EFI system with the correct wiring for your GM LS2, LS3, or LS7 engine using this dedicated Main Wiring Harness. Engineered for engines featuring a 58x reluctor wheel, this harness ensures seamless integration and reliable communication between your ECU and engine sensors. It's the perfect solution for LS swaps or performance builds requiring precise engine management.

Key Features:

  • Optimized for Holley HP and Dominator EFI systems
  • Direct compatibility with GM LS2, LS3, and LS7 engines
  • Supports 58x reluctor wheel configurations
  • Premium quality construction for lasting performance
  • Simplifies complex engine wiring installations

This high-quality harness is built to withstand the rigors of performance driving, featuring durable materials and secure connectors that prevent signal loss and electrical noise. Proper wiring is fundamental to achieving stable idle, accurate fuel delivery, and optimal ignition timing. By using a harness designed specifically for your engine and EFI system, you minimize potential points of failure and ensure your engine runs as efficiently and powerfully as possible. Trust GGCRACING for all your Holley EFI components and wiring needs.

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