ARP SBC 6.2L LT1 12pt Header Bolt Kit — Fits Small Block Chevy LT1

SKU: ARP134-1103
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About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read More

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Sale price$31.99
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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.

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High-Performance 12-Point Header Bolts for LT1

Upgrade your Small Block Chevy 6.2L LT1 exhaust system with the ARP 134-1103 Header Bolt Kit. These 12-point head bolts are designed for enthusiasts who demand the best in both aesthetics and functionality. The 12-point design allows for easier access in tight quarters, making them a favorite for mechanics and engine builders working on complex engine bays.

Engineered for Excellence

  • Material: Forged 8740 chromoly steel for superior strength.
  • Head Design: 12-point head for improved wrench engagement and clearance.
  • Finish: Corrosion-resistant black oxide coating.
  • Application: Specifically tailored for the 6.2L LT1 engine platform.
  • Reliability: Maintains consistent torque levels to prevent gasket blowouts.

When you are pushing your LT1 engine, you need hardware that can handle the heat. These ARP bolts are designed to resist stretching and loosening under extreme conditions, ensuring your headers stay perfectly sealed. The 12-point design not only looks great but provides the clearance needed when using thick-flange headers where standard hex bolts might be difficult to reach. Don't settle for inferior hardware that can compromise your engine's performance. Invest in the strength and reliability of ARP, the gold standard in automotive fasteners. Get the best components for your build at 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

High-Performance 12-Point Header Bolts for LT1

Upgrade your Small Block Chevy 6.2L LT1 exhaust system with the ARP 134-1103 Header Bolt Kit. These 12-point head bolts are designed for enthusiasts who demand the best in both aesthetics and functionality. The 12-point design allows for easier access in tight quarters, making them a favorite for mechanics and engine builders working on complex engine bays.

Engineered for Excellence

  • Material: Forged 8740 chromoly steel for superior strength.
  • Head Design: 12-point head for improved wrench engagement and clearance.
  • Finish: Corrosion-resistant black oxide coating.
  • Application: Specifically tailored for the 6.2L LT1 engine platform.
  • Reliability: Maintains consistent torque levels to prevent gasket blowouts.

When you are pushing your LT1 engine, you need hardware that can handle the heat. These ARP bolts are designed to resist stretching and loosening under extreme conditions, ensuring your headers stay perfectly sealed. The 12-point design not only looks great but provides the clearance needed when using thick-flange headers where standard hex bolts might be difficult to reach. Don't settle for inferior hardware that can compromise your engine's performance. Invest in the strength and reliability of ARP, the gold standard in automotive fasteners. Get the best components for your build at 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

High-Performance 12-Point Header Bolts for LT1

Upgrade your Small Block Chevy 6.2L LT1 exhaust system with the ARP 134-1103 Header Bolt Kit. These 12-point head bolts are designed for enthusiasts who demand the best in both aesthetics and functionality. The 12-point design allows for easier access in tight quarters, making them a favorite for mechanics and engine builders working on complex engine bays.

Engineered for Excellence

  • Material: Forged 8740 chromoly steel for superior strength.
  • Head Design: 12-point head for improved wrench engagement and clearance.
  • Finish: Corrosion-resistant black oxide coating.
  • Application: Specifically tailored for the 6.2L LT1 engine platform.
  • Reliability: Maintains consistent torque levels to prevent gasket blowouts.

When you are pushing your LT1 engine, you need hardware that can handle the heat. These ARP bolts are designed to resist stretching and loosening under extreme conditions, ensuring your headers stay perfectly sealed. The 12-point design not only looks great but provides the clearance needed when using thick-flange headers where standard hex bolts might be difficult to reach. Don't settle for inferior hardware that can compromise your engine's performance. Invest in the strength and reliability of ARP, the gold standard in automotive fasteners. Get the best components for your build at GGCRACING.

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