ARP 104-6003 Cylinder Head Fastener Kit ARP2000 Pro Series

The ARP 104-6003 Cylinder Head Fastener Kit delivers professional-grade engine fastening reliability for high-performance and racing applications. Engineered with ARP2000 alloy steel, these cylinder head fasteners provide superior clamping force and fatigue resistance compared to standard hardware, ensuring your cylinder heads stay securely sealed under extreme combustion pressures and thermal cycling.

Key Features:

• ARP2000 alloy steel construction capable of 220,000 psi clamping load
• Complete kit includes all necessary fasteners for cylinder head installation
• Forged in-house at ARP using premium quality materials
• Heat-treated using specialized vertical racks for complete 360-degree penetration
• Threads rolled after heat treatment for up to 10 times longer fatigue life
• Precision CNC-machined to exacting tolerances for consistent performance
• Superior resistance to stress corrosion and hydrogen embrittlement

ARP2000 fasteners represent a significant upgrade over OEM hardware and standard 8740 chrome moly bolts. The advanced alloy steel can be safely heat-treated to higher levels than conventional materials, producing greater strength while maintaining excellent fatigue characteristics. Each fastener is proudly stamped with the ARP name as your assurance of quality and reliability. Whether you're building a street performance engine or a dedicated race motor, ARP 104-6003 cylinder head fasteners provide the security and consistency demanded by engine builders worldwide.