Auto Racing Products Chromoly Header Bolt Kit 12-Point 3/8-16 x 0.875 UHL (12) — Universal Fit

SKU: BQDN_100-1216
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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.

Compact Power: ARP Chromoly Header Bolt Kit for Universal Applications

When space is at a premium or a shorter thread engagement is preferred, the **Auto Racing Products (ARP) Chromoly Header Bolt Kit** with a 0.875-inch under-head length (UHL) is the ideal solution. This 12-piece set of high-strength, 12-point bolts ensures your exhaust headers are securely fastened, providing a leak-free seal and preventing loosening under the most demanding conditions. Engineered for universal fitment, these bolts bring ARP's legendary quality to a wider range of applications.

Optimized Design for Versatile Fitment

Each bolt in this kit is meticulously crafted from premium chromoly steel, offering exceptional tensile strength and resistance to fatigue, crucial for high-performance exhaust systems. The durable black oxide finish not only provides superior corrosion resistance but also contributes to a clean, professional look in any engine bay. With a precise 3/8-16 thread and the slightly shorter 0.875-inch UHL, these fasteners are perfect for installations where a standard 1.00-inch bolt might be too long, ensuring optimal thread engagement without bottoming out.

Key Specifications & Advantages:

  • Premium Chromoly Construction: Guarantees maximum strength and resilience against extreme heat and vibration.
  • Black Oxide Finish: Offers excellent protection against rust and wear, extending the life of your fasteners.
  • 12-Point Head: Facilitates easier and more precise torquing, especially in confined engine compartments.
  • Optimized 0.875-inch UHL: Ideal for applications requiring a shorter bolt length without sacrificing clamping force.
  • Standard 3/8-16 Thread: Ensures broad compatibility with many universal header designs.
  • Complete 12-Bolt Set: Provides sufficient hardware for most standard header installations.

The Smart Choice for Header Security

Choosing ARP header bolts means investing in the long-term reliability and performance of your exhaust system. Their superior design and material quality prevent common issues like exhaust leaks and loose headers, which can lead to power loss and potential damage. For a secure, durable, and precise header installation, trust the expertise of ARP, available through 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.

Compact Power: ARP Chromoly Header Bolt Kit for Universal Applications

When space is at a premium or a shorter thread engagement is preferred, the **Auto Racing Products (ARP) Chromoly Header Bolt Kit** with a 0.875-inch under-head length (UHL) is the ideal solution. This 12-piece set of high-strength, 12-point bolts ensures your exhaust headers are securely fastened, providing a leak-free seal and preventing loosening under the most demanding conditions. Engineered for universal fitment, these bolts bring ARP's legendary quality to a wider range of applications.

Optimized Design for Versatile Fitment

Each bolt in this kit is meticulously crafted from premium chromoly steel, offering exceptional tensile strength and resistance to fatigue, crucial for high-performance exhaust systems. The durable black oxide finish not only provides superior corrosion resistance but also contributes to a clean, professional look in any engine bay. With a precise 3/8-16 thread and the slightly shorter 0.875-inch UHL, these fasteners are perfect for installations where a standard 1.00-inch bolt might be too long, ensuring optimal thread engagement without bottoming out.

Key Specifications & Advantages:

  • Premium Chromoly Construction: Guarantees maximum strength and resilience against extreme heat and vibration.
  • Black Oxide Finish: Offers excellent protection against rust and wear, extending the life of your fasteners.
  • 12-Point Head: Facilitates easier and more precise torquing, especially in confined engine compartments.
  • Optimized 0.875-inch UHL: Ideal for applications requiring a shorter bolt length without sacrificing clamping force.
  • Standard 3/8-16 Thread: Ensures broad compatibility with many universal header designs.
  • Complete 12-Bolt Set: Provides sufficient hardware for most standard header installations.

The Smart Choice for Header Security

Choosing ARP header bolts means investing in the long-term reliability and performance of your exhaust system. Their superior design and material quality prevent common issues like exhaust leaks and loose headers, which can lead to power loss and potential damage. For a secure, durable, and precise header installation, trust the expertise of ARP, available through 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.

Compact Power: ARP Chromoly Header Bolt Kit for Universal Applications

When space is at a premium or a shorter thread engagement is preferred, the **Auto Racing Products (ARP) Chromoly Header Bolt Kit** with a 0.875-inch under-head length (UHL) is the ideal solution. This 12-piece set of high-strength, 12-point bolts ensures your exhaust headers are securely fastened, providing a leak-free seal and preventing loosening under the most demanding conditions. Engineered for universal fitment, these bolts bring ARP's legendary quality to a wider range of applications.

Optimized Design for Versatile Fitment

Each bolt in this kit is meticulously crafted from premium chromoly steel, offering exceptional tensile strength and resistance to fatigue, crucial for high-performance exhaust systems. The durable black oxide finish not only provides superior corrosion resistance but also contributes to a clean, professional look in any engine bay. With a precise 3/8-16 thread and the slightly shorter 0.875-inch UHL, these fasteners are perfect for installations where a standard 1.00-inch bolt might be too long, ensuring optimal thread engagement without bottoming out.

Key Specifications & Advantages:

  • Premium Chromoly Construction: Guarantees maximum strength and resilience against extreme heat and vibration.
  • Black Oxide Finish: Offers excellent protection against rust and wear, extending the life of your fasteners.
  • 12-Point Head: Facilitates easier and more precise torquing, especially in confined engine compartments.
  • Optimized 0.875-inch UHL: Ideal for applications requiring a shorter bolt length without sacrificing clamping force.
  • Standard 3/8-16 Thread: Ensures broad compatibility with many universal header designs.
  • Complete 12-Bolt Set: Provides sufficient hardware for most standard header installations.

The Smart Choice for Header Security

Choosing ARP header bolts means investing in the long-term reliability and performance of your exhaust system. Their superior design and material quality prevent common issues like exhaust leaks and loose headers, which can lead to power loss and potential damage. For a secure, durable, and precise header installation, trust the expertise of ARP, available through GGCRACING.

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