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

SKU: BQDN_100-1201
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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 Small Block Chevy

Upgrade your Small Block Chevy exhaust setup with the Auto Racing Products 12-Point Header Bolt Kit. Designed for enthusiasts who prioritize both form and function, these bolts feature a 12-point head design that allows for easier wrenching in tight spaces where standard hex heads simply won't fit. With a 0.75-inch under-head length, they are the perfect fit for most SBC header installations, providing a secure, leak-free seal every time.

Precision Engineering

  • Compatibility: Small Block Chevy (SBC)
  • Thread Size: 3/8-16
  • Under Head Length (UHL): 0.75 inch
  • Head Style: 12-Point
  • Material: Premium Chromoly Steel
  • Finish: Black Oxide
  • Quantity: 12-Piece Set

Constructed from high-tensile chromoly steel, these bolts are built to handle the intense heat cycles of high-performance engines without stretching or loosening. The 12-point head not only looks great but also provides a larger surface area for your socket, reducing the chance of rounding off the bolt head during installation or removal. The black oxide finish ensures long-lasting corrosion resistance, keeping your engine bay looking clean and professional. By switching to these high-grade fasteners, you are investing in the long-term health of your engine's exhaust system, preventing common issues like blown gaskets and exhaust leaks. Ensure your Small Block Chevy is performing at its peak with the right hardware 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.

12-Point Header Bolts for Small Block Chevy

Upgrade your Small Block Chevy exhaust setup with the Auto Racing Products 12-Point Header Bolt Kit. Designed for enthusiasts who prioritize both form and function, these bolts feature a 12-point head design that allows for easier wrenching in tight spaces where standard hex heads simply won't fit. With a 0.75-inch under-head length, they are the perfect fit for most SBC header installations, providing a secure, leak-free seal every time.

Precision Engineering

  • Compatibility: Small Block Chevy (SBC)
  • Thread Size: 3/8-16
  • Under Head Length (UHL): 0.75 inch
  • Head Style: 12-Point
  • Material: Premium Chromoly Steel
  • Finish: Black Oxide
  • Quantity: 12-Piece Set

Constructed from high-tensile chromoly steel, these bolts are built to handle the intense heat cycles of high-performance engines without stretching or loosening. The 12-point head not only looks great but also provides a larger surface area for your socket, reducing the chance of rounding off the bolt head during installation or removal. The black oxide finish ensures long-lasting corrosion resistance, keeping your engine bay looking clean and professional. By switching to these high-grade fasteners, you are investing in the long-term health of your engine's exhaust system, preventing common issues like blown gaskets and exhaust leaks. Ensure your Small Block Chevy is performing at its peak with the right hardware 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.

12-Point Header Bolts for Small Block Chevy

Upgrade your Small Block Chevy exhaust setup with the Auto Racing Products 12-Point Header Bolt Kit. Designed for enthusiasts who prioritize both form and function, these bolts feature a 12-point head design that allows for easier wrenching in tight spaces where standard hex heads simply won't fit. With a 0.75-inch under-head length, they are the perfect fit for most SBC header installations, providing a secure, leak-free seal every time.

Precision Engineering

  • Compatibility: Small Block Chevy (SBC)
  • Thread Size: 3/8-16
  • Under Head Length (UHL): 0.75 inch
  • Head Style: 12-Point
  • Material: Premium Chromoly Steel
  • Finish: Black Oxide
  • Quantity: 12-Piece Set

Constructed from high-tensile chromoly steel, these bolts are built to handle the intense heat cycles of high-performance engines without stretching or loosening. The 12-point head not only looks great but also provides a larger surface area for your socket, reducing the chance of rounding off the bolt head during installation or removal. The black oxide finish ensures long-lasting corrosion resistance, keeping your engine bay looking clean and professional. By switching to these high-grade fasteners, you are investing in the long-term health of your engine's exhaust system, preventing common issues like blown gaskets and exhaust leaks. Ensure your Small Block Chevy is performing at its peak with the right hardware from GGCRACING.

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