Auto Racing Products 434-1201 Header Bolt Kit - 12pt. Stainless Polished — Fits GM LS-Series Engines

SKU: BQDN_434-1201
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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.

Precision Fastening for GM LS Headers: ARP 12-Point Stainless Kit

Achieving a perfect, lasting seal for your GM LS-Series headers is crucial for optimal engine performance and a clean exhaust note. The Auto Racing Products 434-1201 Header Bolt Kit provides an advanced fastening solution, featuring 12-point stainless steel bolts meticulously engineered for superior clamping force and exceptional durability. These bolts are designed to prevent exhaust leaks, ensuring that your engine operates at peak efficiency and sounds exactly as it should.

Engineered for Extreme Conditions

Each bolt in this kit is crafted from high-grade stainless steel, offering unparalleled resistance to the high temperatures and corrosive gases inherent in an exhaust system. The polished finish not only provides a stunning visual upgrade to your engine bay but also adds an extra layer of protection against rust and environmental wear. With a precise 8 mm x 1.25 thread and a compact 0.984-inch length, these 12-point fasteners are ideal for tight spaces and ensure maximum thread engagement for a secure, long-lasting connection.

  • Superior Clamping: 12-point head design allows for higher torque and prevents fastener rounding.
  • Optimal Threading: 8 mm x 1.25 thread ensures a perfect, secure fit for LS cylinder heads.
  • Compact Length: 0.984 inches long, ideal for various header designs and tight clearances.
  • Premium Material: Stainless steel construction for ultimate resistance to heat and corrosion.
  • Show-Ready Finish: Polished surface enhances under-hood aesthetics.
  • Complete Kit: Includes 12 bolts, providing a full set for most GM LS header installations.

The ARP Advantage for Your LS Performance Build

When building a high-performance GM LS engine, every detail counts. The ARP 434-1201 kit is a testament to Auto Racing Products' commitment to quality, offering a significant upgrade over standard hardware. These bolts are designed to withstand the rigors of racing and aggressive street driving, providing the reliability and peace of mind you demand. Eliminate exhaust leaks and enhance the longevity of your header installation with these top-tier fasteners. For the best in automotive performance parts, choose 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.

Precision Fastening for GM LS Headers: ARP 12-Point Stainless Kit

Achieving a perfect, lasting seal for your GM LS-Series headers is crucial for optimal engine performance and a clean exhaust note. The Auto Racing Products 434-1201 Header Bolt Kit provides an advanced fastening solution, featuring 12-point stainless steel bolts meticulously engineered for superior clamping force and exceptional durability. These bolts are designed to prevent exhaust leaks, ensuring that your engine operates at peak efficiency and sounds exactly as it should.

Engineered for Extreme Conditions

Each bolt in this kit is crafted from high-grade stainless steel, offering unparalleled resistance to the high temperatures and corrosive gases inherent in an exhaust system. The polished finish not only provides a stunning visual upgrade to your engine bay but also adds an extra layer of protection against rust and environmental wear. With a precise 8 mm x 1.25 thread and a compact 0.984-inch length, these 12-point fasteners are ideal for tight spaces and ensure maximum thread engagement for a secure, long-lasting connection.

  • Superior Clamping: 12-point head design allows for higher torque and prevents fastener rounding.
  • Optimal Threading: 8 mm x 1.25 thread ensures a perfect, secure fit for LS cylinder heads.
  • Compact Length: 0.984 inches long, ideal for various header designs and tight clearances.
  • Premium Material: Stainless steel construction for ultimate resistance to heat and corrosion.
  • Show-Ready Finish: Polished surface enhances under-hood aesthetics.
  • Complete Kit: Includes 12 bolts, providing a full set for most GM LS header installations.

The ARP Advantage for Your LS Performance Build

When building a high-performance GM LS engine, every detail counts. The ARP 434-1201 kit is a testament to Auto Racing Products' commitment to quality, offering a significant upgrade over standard hardware. These bolts are designed to withstand the rigors of racing and aggressive street driving, providing the reliability and peace of mind you demand. Eliminate exhaust leaks and enhance the longevity of your header installation with these top-tier fasteners. For the best in automotive performance parts, choose 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.

Precision Fastening for GM LS Headers: ARP 12-Point Stainless Kit

Achieving a perfect, lasting seal for your GM LS-Series headers is crucial for optimal engine performance and a clean exhaust note. The Auto Racing Products 434-1201 Header Bolt Kit provides an advanced fastening solution, featuring 12-point stainless steel bolts meticulously engineered for superior clamping force and exceptional durability. These bolts are designed to prevent exhaust leaks, ensuring that your engine operates at peak efficiency and sounds exactly as it should.

Engineered for Extreme Conditions

Each bolt in this kit is crafted from high-grade stainless steel, offering unparalleled resistance to the high temperatures and corrosive gases inherent in an exhaust system. The polished finish not only provides a stunning visual upgrade to your engine bay but also adds an extra layer of protection against rust and environmental wear. With a precise 8 mm x 1.25 thread and a compact 0.984-inch length, these 12-point fasteners are ideal for tight spaces and ensure maximum thread engagement for a secure, long-lasting connection.

  • Superior Clamping: 12-point head design allows for higher torque and prevents fastener rounding.
  • Optimal Threading: 8 mm x 1.25 thread ensures a perfect, secure fit for LS cylinder heads.
  • Compact Length: 0.984 inches long, ideal for various header designs and tight clearances.
  • Premium Material: Stainless steel construction for ultimate resistance to heat and corrosion.
  • Show-Ready Finish: Polished surface enhances under-hood aesthetics.
  • Complete Kit: Includes 12 bolts, providing a full set for most GM LS header installations.

The ARP Advantage for Your LS Performance Build

When building a high-performance GM LS engine, every detail counts. The ARP 434-1201 kit is a testament to Auto Racing Products' commitment to quality, offering a significant upgrade over standard hardware. These bolts are designed to withstand the rigors of racing and aggressive street driving, providing the reliability and peace of mind you demand. Eliminate exhaust leaks and enhance the longevity of your header installation with these top-tier fasteners. For the best in automotive performance parts, choose GGCRACING.

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