ARP 235-4019 Cylinder Head Stud Kit Chrome Moly Steel - 8740

The ARP 235-4019 head stud kit represents the gold standard in cylinder head fastening systems for high-performance and racing applications. Engineered with ARP's premium 8740 chrome moly alloy, these studs deliver exceptional strength rated at 200,000 psi—far exceeding aircraft-grade specifications.

Advanced Manufacturing Process:

• Vertical rack heat-treating ensures complete and uniform heat penetration throughout each stud
• Centerless grinding process creates near-perfect concentricity for precise alignment
• Thread rolling performed after heat-treat provides 1000% better fatigue strength compared to pre-heat-treat threading
• Specially undercut short studs equalize stretch characteristics for consistent clamping force

Performance Benefits:

• Superior clamping force prevents head gasket failure under extreme conditions
• Precise tolerances allow cylinder heads and gaskets to align effortlessly during assembly
• Studs stretch only on vertical axis during torquing, eliminating torsional stress present in bolt installations
• Hex head design with hardened parallel-ground washers ensures accurate torque readings and even load distribution

Each stud is stamped with the ARP logo as your assurance of quality. This complete kit includes all necessary fasteners and washers for a professional installation. Perfect for engine builders who demand zero-defect, zero-failure performance in competition and high-performance street applications.

Note: Studs should be installed finger-tight in a relaxed state. Always re-torque after initial engine run-in to compensate for head gasket compression.