Auto Racing Products Header Bolt Kit 12pt 3/8 x .850 — Fits Universal Engines

SKU: BQDN_100-1217
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...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 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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Universal High-Strength Header Bolts

Finding the right length for your custom header setup is critical for a leak-free seal. This Auto Racing Products Header Bolt Kit features a 3/8-16 thread with an under-head length of 0.850 inches, making it a versatile choice for a wide range of universal engine applications. These bolts are manufactured to the highest standards using premium chromoly steel to ensure they do not stretch or fail under extreme exhaust temperatures.

Product Highlights

  • Thread Size: 3/8-16
  • Under Head Length: 0.850 inch
  • Head Style: 12-Point
  • Material: Chromoly
  • Finish: Black Oxide
  • Quantity: Set of 16

The 12-point head design provides excellent clearance for socket access, making installation quick and precise. The black oxide coating provides a professional appearance and essential corrosion resistance. Whether you are working on a custom build or replacing worn-out hardware, these bolts offer the strength and reliability required for high-performance exhaust systems. Ensure your headers stay tight and your engine performs at its peak with high-quality components from 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

Universal High-Strength Header Bolts

Finding the right length for your custom header setup is critical for a leak-free seal. This Auto Racing Products Header Bolt Kit features a 3/8-16 thread with an under-head length of 0.850 inches, making it a versatile choice for a wide range of universal engine applications. These bolts are manufactured to the highest standards using premium chromoly steel to ensure they do not stretch or fail under extreme exhaust temperatures.

Product Highlights

  • Thread Size: 3/8-16
  • Under Head Length: 0.850 inch
  • Head Style: 12-Point
  • Material: Chromoly
  • Finish: Black Oxide
  • Quantity: Set of 16

The 12-point head design provides excellent clearance for socket access, making installation quick and precise. The black oxide coating provides a professional appearance and essential corrosion resistance. Whether you are working on a custom build or replacing worn-out hardware, these bolts offer the strength and reliability required for high-performance exhaust systems. Ensure your headers stay tight and your engine performs at its peak with high-quality components from 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

Universal High-Strength Header Bolts

Finding the right length for your custom header setup is critical for a leak-free seal. This Auto Racing Products Header Bolt Kit features a 3/8-16 thread with an under-head length of 0.850 inches, making it a versatile choice for a wide range of universal engine applications. These bolts are manufactured to the highest standards using premium chromoly steel to ensure they do not stretch or fail under extreme exhaust temperatures.

Product Highlights

  • Thread Size: 3/8-16
  • Under Head Length: 0.850 inch
  • Head Style: 12-Point
  • Material: Chromoly
  • Finish: Black Oxide
  • Quantity: Set of 16

The 12-point head design provides excellent clearance for socket access, making installation quick and precise. The black oxide coating provides a professional appearance and essential corrosion resistance. Whether you are working on a custom build or replacing worn-out hardware, these bolts offer the strength and reliability required for high-performance exhaust systems. Ensure your headers stay tight and your engine performs at its peak with high-quality components from GGCRACING.

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