Auto Racing Products Main Bolt Kit 2-Bolt High Performance — Fits Mopar 426 Hemi

SKU: BQDN_145-5201
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About Auto Racing Products ARP (Automotive Racing Products) makes the ...Read More

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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.

Watch in action

Superior Bottom End Security for 426 Hemi

The foundation of any high-performance Mopar 426 Hemi engine is a secure main cap assembly. This Auto Racing Products (ARP) Main Bolt Kit is specifically engineered for 2-bolt main applications, offering significantly higher tensile strength than factory hardware. By utilizing these high-performance bolts, you ensure that your main caps remain stationary under extreme RPM and load, preventing catastrophic engine failure.

Technical Highlights

  • Application: Mopar 426 Hemi (2-Bolt Mains)
  • Material: 8740 Chromoly Steel
  • Head Style: Hex Head
  • Finish: Black Oxide
  • Features: Includes cross bolts for added stability

These bolts are heat-treated and precision-machined to provide uniform clamping force across your main caps. The inclusion of cross bolts ensures that the bottom end remains rigid, which is essential for maintaining proper bearing clearances and oil pressure during high-output operation. When building a legendary Hemi engine, do not compromise on the hardware that holds it together. Choose the trusted industry standard for your engine build. GGCRACING is your source for premium engine fasteners and high-performance components.

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.

Watch in action

Superior Bottom End Security for 426 Hemi

The foundation of any high-performance Mopar 426 Hemi engine is a secure main cap assembly. This Auto Racing Products (ARP) Main Bolt Kit is specifically engineered for 2-bolt main applications, offering significantly higher tensile strength than factory hardware. By utilizing these high-performance bolts, you ensure that your main caps remain stationary under extreme RPM and load, preventing catastrophic engine failure.

Technical Highlights

  • Application: Mopar 426 Hemi (2-Bolt Mains)
  • Material: 8740 Chromoly Steel
  • Head Style: Hex Head
  • Finish: Black Oxide
  • Features: Includes cross bolts for added stability

These bolts are heat-treated and precision-machined to provide uniform clamping force across your main caps. The inclusion of cross bolts ensures that the bottom end remains rigid, which is essential for maintaining proper bearing clearances and oil pressure during high-output operation. When building a legendary Hemi engine, do not compromise on the hardware that holds it together. Choose the trusted industry standard for your engine build. GGCRACING is your source for premium engine fasteners and high-performance components.

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.

Watch in action

Superior Bottom End Security for 426 Hemi

The foundation of any high-performance Mopar 426 Hemi engine is a secure main cap assembly. This Auto Racing Products (ARP) Main Bolt Kit is specifically engineered for 2-bolt main applications, offering significantly higher tensile strength than factory hardware. By utilizing these high-performance bolts, you ensure that your main caps remain stationary under extreme RPM and load, preventing catastrophic engine failure.

Technical Highlights

  • Application: Mopar 426 Hemi (2-Bolt Mains)
  • Material: 8740 Chromoly Steel
  • Head Style: Hex Head
  • Finish: Black Oxide
  • Features: Includes cross bolts for added stability

These bolts are heat-treated and precision-machined to provide uniform clamping force across your main caps. The inclusion of cross bolts ensures that the bottom end remains rigid, which is essential for maintaining proper bearing clearances and oil pressure during high-output operation. When building a legendary Hemi engine, do not compromise on the hardware that holds it together. Choose the trusted industry standard for your engine build. GGCRACING is your source for premium engine fasteners and high-performance components.

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