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

ARP SBC/GENIII LS 3/8 Flange 12pt Header Bolt Kit

SKU: ARP134-1202

About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read more

Price:
$37.99
370 ENTRIES10X
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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

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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.

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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.

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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