Quarter Master 11mm LS-Series Flywheel Bolt Kit 12-Point — Fits GM LS

SKU: BJGP_505007
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Sale price$73.25
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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 Quarter Master

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

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Premium LS-Series Flywheel Fasteners

The GM LS-series engine platform is legendary for its power potential, but it requires specialized hardware to handle the stress. This Quarter Master Flywheel Bolt Kit is specifically engineered for LS-series applications, featuring the correct 11mm x 1.50 metric thread pitch. These bolts are designed to provide the precise clamping force needed to keep your flywheel secure under high-performance conditions.

Key Features

  • Thread: 11mm x 1.50
  • Length: 0.990 inches
  • Head: 12-Point
  • Material: High-strength Chromoly
  • Finish: Black Oxide
  • Application: GM LS-Series engines
  • Quantity: Set of 6

Why choose these bolts for your LS build? The 12-point head design provides excellent clearance and allows for high-torque installation, which is critical for maintaining a stable flywheel-to-crankshaft interface. The chromoly construction is significantly stronger than factory hardware, offering added insurance against bolt stretch or failure in high-horsepower or high-RPM applications. Whether you are building a street-strip machine or a dedicated track car, these bolts provide the professional-grade security your engine deserves. Ensure your LS build is ready for the track with high-quality components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Quarter Master

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

Watch in action

Premium LS-Series Flywheel Fasteners

The GM LS-series engine platform is legendary for its power potential, but it requires specialized hardware to handle the stress. This Quarter Master Flywheel Bolt Kit is specifically engineered for LS-series applications, featuring the correct 11mm x 1.50 metric thread pitch. These bolts are designed to provide the precise clamping force needed to keep your flywheel secure under high-performance conditions.

Key Features

  • Thread: 11mm x 1.50
  • Length: 0.990 inches
  • Head: 12-Point
  • Material: High-strength Chromoly
  • Finish: Black Oxide
  • Application: GM LS-Series engines
  • Quantity: Set of 6

Why choose these bolts for your LS build? The 12-point head design provides excellent clearance and allows for high-torque installation, which is critical for maintaining a stable flywheel-to-crankshaft interface. The chromoly construction is significantly stronger than factory hardware, offering added insurance against bolt stretch or failure in high-horsepower or high-RPM applications. Whether you are building a street-strip machine or a dedicated track car, these bolts provide the professional-grade security your engine deserves. Ensure your LS build is ready for the track with high-quality components from GGCRACING.

Product Details

Product Description

About Quarter Master

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

Watch in action

Premium LS-Series Flywheel Fasteners

The GM LS-series engine platform is legendary for its power potential, but it requires specialized hardware to handle the stress. This Quarter Master Flywheel Bolt Kit is specifically engineered for LS-series applications, featuring the correct 11mm x 1.50 metric thread pitch. These bolts are designed to provide the precise clamping force needed to keep your flywheel secure under high-performance conditions.

Key Features

  • Thread: 11mm x 1.50
  • Length: 0.990 inches
  • Head: 12-Point
  • Material: High-strength Chromoly
  • Finish: Black Oxide
  • Application: GM LS-Series engines
  • Quantity: Set of 6

Why choose these bolts for your LS build? The 12-point head design provides excellent clearance and allows for high-torque installation, which is critical for maintaining a stable flywheel-to-crankshaft interface. The chromoly construction is significantly stronger than factory hardware, offering added insurance against bolt stretch or failure in high-horsepower or high-RPM applications. Whether you are building a street-strip machine or a dedicated track car, these bolts provide the professional-grade security your engine deserves. Ensure your LS build is ready for the track with high-quality components from GGCRACING.

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