Holley EFI Coil-Near-Plug Smart Coil Kit - V8 Big Wire High-Output Ignition System

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SKU: GVMR_556-128
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Sale price$673.95 Regular price$749.95
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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

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

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Holley EFI Coil-Near-Plug Smart Coil Kit: Unleash Maximum Spark Energy for Your V8

Elevate your V8 engine's ignition performance to an elite level with the Holley EFI Coil-Near-Plug Smart Coil Kit. Designed for serious enthusiasts and racers, this high-output ignition system delivers an incredibly powerful and consistent spark, crucial for maximizing combustion efficiency, especially in high-RPM, forced induction, or high-compression applications. Say goodbye to ignition misfires and inconsistent power, and experience the full potential of your V8 engine with a robust and reliable spark.

Advanced Ignition Technology for Peak Performance

This Smart Coil Kit features advanced E-core coils capable of producing a massive 44,000 volts of spark energy, ensuring complete fuel burn for more power and better throttle response. The "Big Wire" design minimizes resistance and maximizes current flow, delivering every ounce of energy to your spark plugs. Each coil is a "smart" coil, meaning it has an integrated igniter, simplifying wiring and enhancing reliability by reducing external components.

Key Components & Benefits:

  • High-Output E-Core Coils: Delivers 44,000V for superior spark energy and combustion.
  • Big Wire Design: Optimized for maximum current delivery and minimal voltage drop.
  • Integrated Igniters (Smart Coils): Simplifies installation and improves system reliability.
  • Complete Wiring Harness & Loom: Ensures a clean, professional, and secure electrical connection.
  • Male HEI Style Terminals: Provides a robust and widely compatible connection point.
  • Enhanced Engine Performance: Improves throttle response, reduces misfires, and supports higher horsepower.

Built for Demanding V8 Applications

The Holley EFI Coil-Near-Plug Smart Coil Kit (MPN: 556-128) is engineered for V8 engines where reliable, high-energy ignition is paramount. Whether you're building a street machine, a drag racer, or an off-road beast, this kit provides the foundation for an ignition system that won't let you down. Experience the difference a truly powerful spark can make in your engine's performance and longevity. For cutting-edge ignition solutions, trust GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Holley EFI Coil-Near-Plug Smart Coil Kit: Unleash Maximum Spark Energy for Your V8

Elevate your V8 engine's ignition performance to an elite level with the Holley EFI Coil-Near-Plug Smart Coil Kit. Designed for serious enthusiasts and racers, this high-output ignition system delivers an incredibly powerful and consistent spark, crucial for maximizing combustion efficiency, especially in high-RPM, forced induction, or high-compression applications. Say goodbye to ignition misfires and inconsistent power, and experience the full potential of your V8 engine with a robust and reliable spark.

Advanced Ignition Technology for Peak Performance

This Smart Coil Kit features advanced E-core coils capable of producing a massive 44,000 volts of spark energy, ensuring complete fuel burn for more power and better throttle response. The "Big Wire" design minimizes resistance and maximizes current flow, delivering every ounce of energy to your spark plugs. Each coil is a "smart" coil, meaning it has an integrated igniter, simplifying wiring and enhancing reliability by reducing external components.

Key Components & Benefits:

  • High-Output E-Core Coils: Delivers 44,000V for superior spark energy and combustion.
  • Big Wire Design: Optimized for maximum current delivery and minimal voltage drop.
  • Integrated Igniters (Smart Coils): Simplifies installation and improves system reliability.
  • Complete Wiring Harness & Loom: Ensures a clean, professional, and secure electrical connection.
  • Male HEI Style Terminals: Provides a robust and widely compatible connection point.
  • Enhanced Engine Performance: Improves throttle response, reduces misfires, and supports higher horsepower.

Built for Demanding V8 Applications

The Holley EFI Coil-Near-Plug Smart Coil Kit (MPN: 556-128) is engineered for V8 engines where reliable, high-energy ignition is paramount. Whether you're building a street machine, a drag racer, or an off-road beast, this kit provides the foundation for an ignition system that won't let you down. Experience the difference a truly powerful spark can make in your engine's performance and longevity. For cutting-edge ignition solutions, trust GGCRACING.

Product Details

Product Description

About Holley EFI

Holley EFI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Holley EFI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Holley EFI Coil-Near-Plug Smart Coil Kit: Unleash Maximum Spark Energy for Your V8

Elevate your V8 engine's ignition performance to an elite level with the Holley EFI Coil-Near-Plug Smart Coil Kit. Designed for serious enthusiasts and racers, this high-output ignition system delivers an incredibly powerful and consistent spark, crucial for maximizing combustion efficiency, especially in high-RPM, forced induction, or high-compression applications. Say goodbye to ignition misfires and inconsistent power, and experience the full potential of your V8 engine with a robust and reliable spark.

Advanced Ignition Technology for Peak Performance

This Smart Coil Kit features advanced E-core coils capable of producing a massive 44,000 volts of spark energy, ensuring complete fuel burn for more power and better throttle response. The "Big Wire" design minimizes resistance and maximizes current flow, delivering every ounce of energy to your spark plugs. Each coil is a "smart" coil, meaning it has an integrated igniter, simplifying wiring and enhancing reliability by reducing external components.

Key Components & Benefits:

  • High-Output E-Core Coils: Delivers 44,000V for superior spark energy and combustion.
  • Big Wire Design: Optimized for maximum current delivery and minimal voltage drop.
  • Integrated Igniters (Smart Coils): Simplifies installation and improves system reliability.
  • Complete Wiring Harness & Loom: Ensures a clean, professional, and secure electrical connection.
  • Male HEI Style Terminals: Provides a robust and widely compatible connection point.
  • Enhanced Engine Performance: Improves throttle response, reduces misfires, and supports higher horsepower.

Built for Demanding V8 Applications

The Holley EFI Coil-Near-Plug Smart Coil Kit (MPN: 556-128) is engineered for V8 engines where reliable, high-energy ignition is paramount. Whether you're building a street machine, a drag racer, or an off-road beast, this kit provides the foundation for an ignition system that won't let you down. Experience the difference a truly powerful spark can make in your engine's performance and longevity. For cutting-edge ignition solutions, trust GGCRACING.

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