ARP 253-4701 High Performance Cylinder Head Stud Kit Chrome Moly - 8740

The ARP 253-4701 cylinder head stud kit delivers professional-grade clamping force and reliability for high-performance engine builds. Manufactured from premium 8740 chrome moly steel and heat-treated to 200,000 psi, these studs provide the strength and consistency demanded by serious engine builders.

Superior Manufacturing Process:

• Premium 8740 chrome moly alloy rated superior to aircraft quality material
• Vertical rack heat-treatment ensures complete penetration and uniform strength to 200,000 psi
• Centerless ground for exceptional concentricity and straightness
• Thread rolled after heat-treat for 10x better fatigue strength
• 12-point head design for precise torque application

Performance Advantages:

• Studs provide more accurate and consistent torque loading versus bolts
• Eliminates twisting forces during installation for true vertical stretch
• Undercut shorter studs equalize stretch for consistent clamping force
• Helps prevent head gasket failures through optimized compression compensation
• Easier engine assembly with perfect head and gasket alignment

Kit Includes:

• Complete stud set with hardened parallel-ground washers
• 12-point nuts for reduced wrenching requirements
• Wide area flanged design eliminates need for valve train removal during retorquing

Each ARP stud is stamped with the ARP logo as assurance of quality and meets ARP's zero-defect, zero-failure standard. These studs are the choice of leading professional engine builders across all forms of racing and high-performance applications.