Auto Racing Products Header Bolt Kit 12-Point 3/8 x .750 UHL — Fits Big Block Chevy / Ford (Set of 16)

SKU: BQDN_100-1202
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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 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.

12-Point Header Bolts for BBC and Ford Engines

Ensure your high-performance engine is leak-free with the Auto Racing Products 12-Point Header Bolt Kit. Designed specifically for Big Block Chevy and various Ford applications, these bolts offer a superior alternative to factory hardware. The 12-point head design is a favorite among professional engine builders, offering increased clearance and a more secure grip for precise torque application in cramped engine bays.

Technical Specifications

  • Compatibility: Big Block Chevy / Ford
  • Thread Size: 3/8-16
  • Under Head Length (UHL): 0.75 inch
  • Head Style: 12-Point
  • Material: High-Strength Chromoly
  • Finish: Black Oxide
  • Quantity: 16-Piece Set

These bolts are forged from premium chromoly steel, providing unmatched tensile strength compared to standard mild steel hardware. This ensures that your headers stay firmly attached, even under the extreme thermal expansion and vibration found in high-horsepower racing engines. The black oxide coating provides a durable, rust-resistant barrier, ensuring these bolts maintain their integrity and appearance over the long haul. Whether you are running a classic Ford or a powerful Big Block Chevy, this kit provides the essential hardware needed to maintain a perfect seal at the exhaust port. Don't let loose headers rob you of power or create annoying exhaust leaks; upgrade to the reliability of professional-grade fasteners. Find all your performance engine components and hardware 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.

12-Point Header Bolts for BBC and Ford Engines

Ensure your high-performance engine is leak-free with the Auto Racing Products 12-Point Header Bolt Kit. Designed specifically for Big Block Chevy and various Ford applications, these bolts offer a superior alternative to factory hardware. The 12-point head design is a favorite among professional engine builders, offering increased clearance and a more secure grip for precise torque application in cramped engine bays.

Technical Specifications

  • Compatibility: Big Block Chevy / Ford
  • Thread Size: 3/8-16
  • Under Head Length (UHL): 0.75 inch
  • Head Style: 12-Point
  • Material: High-Strength Chromoly
  • Finish: Black Oxide
  • Quantity: 16-Piece Set

These bolts are forged from premium chromoly steel, providing unmatched tensile strength compared to standard mild steel hardware. This ensures that your headers stay firmly attached, even under the extreme thermal expansion and vibration found in high-horsepower racing engines. The black oxide coating provides a durable, rust-resistant barrier, ensuring these bolts maintain their integrity and appearance over the long haul. Whether you are running a classic Ford or a powerful Big Block Chevy, this kit provides the essential hardware needed to maintain a perfect seal at the exhaust port. Don't let loose headers rob you of power or create annoying exhaust leaks; upgrade to the reliability of professional-grade fasteners. Find all your performance engine components and hardware 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.

12-Point Header Bolts for BBC and Ford Engines

Ensure your high-performance engine is leak-free with the Auto Racing Products 12-Point Header Bolt Kit. Designed specifically for Big Block Chevy and various Ford applications, these bolts offer a superior alternative to factory hardware. The 12-point head design is a favorite among professional engine builders, offering increased clearance and a more secure grip for precise torque application in cramped engine bays.

Technical Specifications

  • Compatibility: Big Block Chevy / Ford
  • Thread Size: 3/8-16
  • Under Head Length (UHL): 0.75 inch
  • Head Style: 12-Point
  • Material: High-Strength Chromoly
  • Finish: Black Oxide
  • Quantity: 16-Piece Set

These bolts are forged from premium chromoly steel, providing unmatched tensile strength compared to standard mild steel hardware. This ensures that your headers stay firmly attached, even under the extreme thermal expansion and vibration found in high-horsepower racing engines. The black oxide coating provides a durable, rust-resistant barrier, ensuring these bolts maintain their integrity and appearance over the long haul. Whether you are running a classic Ford or a powerful Big Block Chevy, this kit provides the essential hardware needed to maintain a perfect seal at the exhaust port. Don't let loose headers rob you of power or create annoying exhaust leaks; upgrade to the reliability of professional-grade fasteners. Find all your performance engine components and hardware at GGCRACING.

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