Auto Racing Products

Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines

Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines
Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines
Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines
Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines
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Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy EnginesAuto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy EnginesAuto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy EnginesAuto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines
Auto Racing Products

Auto Racing Products BBC Harmonic Balancer Bolt 1/2-20 Thread — Fits Big Block Chevy Engines

SKU: BQDN_135-2501
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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
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Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

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Ultimate Harmonic Balancer Security for Big Block Chevy

Ensure your engine's harmonic balancer stays perfectly seated under high-RPM stress with this premium ARP balancer bolt. Engineered specifically for Big Block Chevy applications, this fastener provides the clamping force required to prevent vibration-induced loosening, a common failure point in high-performance builds.

Technical Specifications

  • Thread Size: 1/2-20
  • Length: 1.550 inches
  • Head Style: 5/8-inch 12-point
  • Material: High-strength chromoly steel
  • Finish: Corrosion-resistant black oxide

Constructed from superior chromoly steel, this bolt offers significantly higher tensile strength than standard OEM hardware. The 12-point head design allows for easier torque application in tight engine bays, ensuring you reach the precise specifications needed for your build. Whether you are building a street machine or a dedicated track car, this fastener is an essential upgrade for any BBC engine assembly. Trust your engine's longevity to the best in the business. Find all your performance engine hardware needs at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Ultimate Harmonic Balancer Security for Big Block Chevy

Ensure your engine's harmonic balancer stays perfectly seated under high-RPM stress with this premium ARP balancer bolt. Engineered specifically for Big Block Chevy applications, this fastener provides the clamping force required to prevent vibration-induced loosening, a common failure point in high-performance builds.

Technical Specifications

  • Thread Size: 1/2-20
  • Length: 1.550 inches
  • Head Style: 5/8-inch 12-point
  • Material: High-strength chromoly steel
  • Finish: Corrosion-resistant black oxide

Constructed from superior chromoly steel, this bolt offers significantly higher tensile strength than standard OEM hardware. The 12-point head design allows for easier torque application in tight engine bays, ensuring you reach the precise specifications needed for your build. Whether you are building a street machine or a dedicated track car, this fastener is an essential upgrade for any BBC engine assembly. Trust your engine's longevity to the best in the business. Find all your performance engine hardware needs at GGCRACING.

Product Details

Product Description

About Auto Racing Products

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Ultimate Harmonic Balancer Security for Big Block Chevy

Ensure your engine's harmonic balancer stays perfectly seated under high-RPM stress with this premium ARP balancer bolt. Engineered specifically for Big Block Chevy applications, this fastener provides the clamping force required to prevent vibration-induced loosening, a common failure point in high-performance builds.

Technical Specifications

  • Thread Size: 1/2-20
  • Length: 1.550 inches
  • Head Style: 5/8-inch 12-point
  • Material: High-strength chromoly steel
  • Finish: Corrosion-resistant black oxide

Constructed from superior chromoly steel, this bolt offers significantly higher tensile strength than standard OEM hardware. The 12-point head design allows for easier torque application in tight engine bays, ensuring you reach the precise specifications needed for your build. Whether you are building a street machine or a dedicated track car, this fastener is an essential upgrade for any BBC engine assembly. Trust your engine's longevity to the best in the business. Find all your performance engine hardware needs at GGCRACING.

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