ARP SBC/GENIII LS 3/8 Flange 12pt Header Bolt Kit — Fits Small Block Chevy & LS Engines

SKU: ARP134-1202
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About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read More

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Sale price$37.99
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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 ARP

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

Ultimate Header Security for SBC and LS Engines

Stop dealing with loose header bolts and exhaust leaks. The ARP 134-1202 Header Bolt Kit is the industry standard for high-performance Small Block Chevy and Gen III LS engine applications. Engineered from premium-grade 8740 chromoly steel, these bolts offer superior tensile strength compared to standard factory hardware, ensuring your headers stay securely fastened under extreme thermal cycling and high-vibration environments.

Key Features and Technical Specs

  • Material: High-strength 8740 chromoly steel
  • Design: 12-point head for easy socket access in tight engine bays
  • Finish: Black oxide coating for enhanced corrosion resistance
  • Fitment: Designed for 3/8-inch flange thickness on SBC and LS headers
  • Kit Includes: Complete set of bolts and washers for a full installation

Whether you are building a street-strip machine or a dedicated track car, these bolts provide the peace of mind that your exhaust system is locked down tight. The 12-point design allows for better clearance around primary tubes, making installation and maintenance significantly easier than traditional hex-head bolts. Don't compromise your engine's performance with inferior hardware; choose the reliability that professional engine builders trust. Upgrade your exhaust hardware today with GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About ARP

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

Ultimate Header Security for SBC and LS Engines

Stop dealing with loose header bolts and exhaust leaks. The ARP 134-1202 Header Bolt Kit is the industry standard for high-performance Small Block Chevy and Gen III LS engine applications. Engineered from premium-grade 8740 chromoly steel, these bolts offer superior tensile strength compared to standard factory hardware, ensuring your headers stay securely fastened under extreme thermal cycling and high-vibration environments.

Key Features and Technical Specs

  • Material: High-strength 8740 chromoly steel
  • Design: 12-point head for easy socket access in tight engine bays
  • Finish: Black oxide coating for enhanced corrosion resistance
  • Fitment: Designed for 3/8-inch flange thickness on SBC and LS headers
  • Kit Includes: Complete set of bolts and washers for a full installation

Whether you are building a street-strip machine or a dedicated track car, these bolts provide the peace of mind that your exhaust system is locked down tight. The 12-point design allows for better clearance around primary tubes, making installation and maintenance significantly easier than traditional hex-head bolts. Don't compromise your engine's performance with inferior hardware; choose the reliability that professional engine builders trust. Upgrade your exhaust hardware today with GGCRACING.

Product Details

Product Description

About ARP

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

Ultimate Header Security for SBC and LS Engines

Stop dealing with loose header bolts and exhaust leaks. The ARP 134-1202 Header Bolt Kit is the industry standard for high-performance Small Block Chevy and Gen III LS engine applications. Engineered from premium-grade 8740 chromoly steel, these bolts offer superior tensile strength compared to standard factory hardware, ensuring your headers stay securely fastened under extreme thermal cycling and high-vibration environments.

Key Features and Technical Specs

  • Material: High-strength 8740 chromoly steel
  • Design: 12-point head for easy socket access in tight engine bays
  • Finish: Black oxide coating for enhanced corrosion resistance
  • Fitment: Designed for 3/8-inch flange thickness on SBC and LS headers
  • Kit Includes: Complete set of bolts and washers for a full installation

Whether you are building a street-strip machine or a dedicated track car, these bolts provide the peace of mind that your exhaust system is locked down tight. The 12-point design allows for better clearance around primary tubes, making installation and maintenance significantly easier than traditional hex-head bolts. Don't compromise your engine's performance with inferior hardware; choose the reliability that professional engine builders trust. Upgrade your exhaust hardware today with GGCRACING.

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