ARP 114-3604 Cylinder Head Fasteners High Performance Chrome Moly Steel - 8740

The ARP 114-3604 High Performance Series cylinder head fasteners deliver professional-grade reliability and strength for demanding engine builds. Manufactured from premium 8740 chrome moly steel and heat-treated to 180,000 psi (15% stronger than Grade 8), these hex head bolts provide superior clamping force and durability for high-performance applications.

Advanced Manufacturing Process:

• Premium 8740 chrome moly alloy steel construction
• Heat-treated to 180,000 psi for exceptional strength
• Thread rolled after heat-treatment for 10x better fatigue resistance
• Centerless ground for precise concentricity and perfect alignment
• Cold-forged to ensure molecular integrity

Design Features:

• Reduced wrenching hex head design
• Wide area flanged head eliminates need for valve train removal during retorquing
• Hardened parallel-ground washers included for even load distribution
• Precision machining ensures gaskets and cylinder heads align perfectly

Performance Benefits:

• More accurate and consistent torque loading compared to standard bolts
• Superior clamping force helps prevent head gasket failures
• Meets ARP's zero defect, zero failure quality standard
• Allows use of larger diameter valve springs

Each kit includes all necessary fasteners and hardened washers for complete installation. ARP fasteners are trusted by professional engine builders across all forms of motorsports for their unmatched quality and reliability. Every fastener is stamped with the ARP logo as assurance of authenticity and quality.

Note: Always re-torque fasteners after initial engine run-in to compensate for head gasket compression.