ARP Main Engine Studs – High-Strength Fasteners for Maximum Bottom-End Stability

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Premium ARP main engine studs designed for unmatched strength, precise clamping, and maximum reliability. Perfect for stock rebuilds, high-boost setups, and competitive motorsport engines.

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ARP Main Engine Studs – Ultimate Strength for Bottom-End Security

ARP main engine studs are engineered to provide superior clamping force and bottom-end stability in both stock and high-performance applications. Whether you’re upgrading a street engine, building a turbocharged powerhouse, or assembling a full-blown race motor, ARP studs deliver unmatched strength and reliability.

Why Choose ARP Main Studs?

The factory main bolts are often insufficient for engines running high boost, high compression, or elevated RPMs. ARP main studs ensure consistent preload and prevent main cap walk or shifting under extreme stress, making them essential for serious performance builds.

  • Superior Clamping Force – Keeps main caps secure under extreme loads.
  • Unmatched Strength – Manufactured from high-grade ARP2000, L19, or Custom Age 625+ materials.
  • Enhanced Reliability – Eliminates cap movement, maintaining crankshaft stability at high RPM.
  • Motorsport Proven – Trusted by top engine builders worldwide.

Applications of ARP Main Engine Studs

  • High-horsepower turbocharged and supercharged builds
  • High-compression naturally aspirated engines
  • Motorsport engines for drag, drift, and endurance racing
  • OEM rebuilds requiring stronger and more reliable fasteners

Types of ARP Main Stud Kits

  • Standard ARP Main Studs – Perfect for street builds and mild performance upgrades.
  • ARP2000 Main Stud Kits – Ideal for boosted applications and higher RPM ranges.
  • L19 Main Studs – Extreme tensile strength for big boost and nitrous-powered engines.
  • Custom Age 625+ Studs – The ultimate solution for maximum reliability in competitive motorsport environments.

Benefits of ARP Main Engine Studs

  • Prevents main cap shifting and crank misalignment
  • Handles extreme cylinder pressures and torque loads
  • Provides consistent and repeatable torque values
  • Protects against fastener stretch and thread fatigue

Installation Tips

To achieve the best results with ARP main engine studs:

  • Always clean threads thoroughly before installation.
  • Use ARP Ultra-Torque assembly lube for precise preload and clamping.
  • Follow ARP’s recommended torque specifications and tightening sequence.
  • Check main bearing clearances after installation for optimal fitment.

Motorsport-Proven Performance

ARP main studs are used by top racing teams and engine builders in disciplines such as drag racing, drifting, rally, endurance racing, and time attack. Their ability to maintain structural integrity under extreme loads makes them the gold standard in engine fasteners.

Conclusion

Our range of ARP main engine studs provides unmatched strength, precision, and reliability for all types of builds. Whether you're refreshing a stock motor, tuning a high-boost setup, or assembling a dedicated racing engine, ARP fasteners deliver the bottom-end security needed to handle extreme power levels and RPM ranges.

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