Holley Crank Trigger Kit 12-1X Hall Effect — Fits 8-inch Balancer GM LS-Series

SKU: BBVL_556-174
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About Holley Holley is the legendary American carburetor and fuel-injection ...Read More

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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

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Watch in action

High-Precision Crank Trigger for GM LS Engines

Take control of your GM LS-Series engine timing with the Holley 12-1X Hall Effect Crank Trigger Kit. Engineered for engines equipped with an 8-inch balancer, this kit is designed to provide the high-resolution crankshaft position data required by modern high-performance EFI systems. By utilizing a flying magnet trigger wheel, this system ensures that your ECU receives a clean, accurate signal regardless of engine load or RPM.

Technical Specifications

  • Hall Effect Sensor: Provides a stable, digital signal that is immune to the electromagnetic interference common in high-performance engine bays.
  • 12-1X Pattern: The industry standard for high-performance EFI timing reference.
  • Robust Design: Includes a precision-machined trigger wheel, adjustable mounting bracket, and all necessary hardware.
  • Improved Performance: Eliminates timing drift for more accurate spark delivery and engine safety.

The LS engine platform is known for its versatility and power, but it requires precise ignition timing to reach its full potential. This crank trigger kit is the ideal solution for builders looking to eliminate timing inaccuracies and ensure the engine runs smoothly under extreme conditions. Whether you are building a street-strip monster or a dedicated track car, the reliability of this Holley kit is unmatched. Improve your LS-Series ignition system today with the best components available at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Watch in action

High-Precision Crank Trigger for GM LS Engines

Take control of your GM LS-Series engine timing with the Holley 12-1X Hall Effect Crank Trigger Kit. Engineered for engines equipped with an 8-inch balancer, this kit is designed to provide the high-resolution crankshaft position data required by modern high-performance EFI systems. By utilizing a flying magnet trigger wheel, this system ensures that your ECU receives a clean, accurate signal regardless of engine load or RPM.

Technical Specifications

  • Hall Effect Sensor: Provides a stable, digital signal that is immune to the electromagnetic interference common in high-performance engine bays.
  • 12-1X Pattern: The industry standard for high-performance EFI timing reference.
  • Robust Design: Includes a precision-machined trigger wheel, adjustable mounting bracket, and all necessary hardware.
  • Improved Performance: Eliminates timing drift for more accurate spark delivery and engine safety.

The LS engine platform is known for its versatility and power, but it requires precise ignition timing to reach its full potential. This crank trigger kit is the ideal solution for builders looking to eliminate timing inaccuracies and ensure the engine runs smoothly under extreme conditions. Whether you are building a street-strip monster or a dedicated track car, the reliability of this Holley kit is unmatched. Improve your LS-Series ignition system today with the best components available at GGCRACING.

Product Details

Product Description

About Holley

Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.

Watch in action

High-Precision Crank Trigger for GM LS Engines

Take control of your GM LS-Series engine timing with the Holley 12-1X Hall Effect Crank Trigger Kit. Engineered for engines equipped with an 8-inch balancer, this kit is designed to provide the high-resolution crankshaft position data required by modern high-performance EFI systems. By utilizing a flying magnet trigger wheel, this system ensures that your ECU receives a clean, accurate signal regardless of engine load or RPM.

Technical Specifications

  • Hall Effect Sensor: Provides a stable, digital signal that is immune to the electromagnetic interference common in high-performance engine bays.
  • 12-1X Pattern: The industry standard for high-performance EFI timing reference.
  • Robust Design: Includes a precision-machined trigger wheel, adjustable mounting bracket, and all necessary hardware.
  • Improved Performance: Eliminates timing drift for more accurate spark delivery and engine safety.

The LS engine platform is known for its versatility and power, but it requires precise ignition timing to reach its full potential. This crank trigger kit is the ideal solution for builders looking to eliminate timing inaccuracies and ensure the engine runs smoothly under extreme conditions. Whether you are building a street-strip monster or a dedicated track car, the reliability of this Holley kit is unmatched. Improve your LS-Series ignition system today with the best components available at GGCRACING.

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