ARP 223-4202 High Performance Cylinder Head Stud Kit Chrome Moly - 8740 12-Point

The ARP 223-4202 cylinder head stud kit delivers professional-grade engine fastening performance using premium 8740 chrome moly steel construction. Designed for high-performance and racing applications, this complete stud kit provides superior clamping force and reliability compared to standard head bolts.

Advanced Manufacturing Process:

• Premium 8740 chrome moly alloy rated at 200,000 psi tensile strength
• Vertical rack heat-treating ensures complete and uniform heat penetration throughout each stud
• Centerless grinding creates exceptionally straight studs with near-perfect concentricity
• Thread rolling performed after heat-treat provides ten times better fatigue strength than pre-heat-treat threading
• Specially undercut shorter studs equalize stretch for more consistent clamping force

Performance Benefits:

• 12-point head design with wide-area flange eliminates need for valve train removal during retorquing
• Superior alignment allows cylinder heads and gaskets to glide into perfect position during assembly
• Studs provide more accurate torque loading than bolts by stretching only on vertical axis without twisting
• Helps prevent head gasket failures through optimized clamping force distribution
• Hardened parallel-ground washers included for even load distribution and accurate torque readings

Each stud is manufactured to exacting tolerances and stamped with the ARP logo as assurance of quality. This kit represents the preferred choice of professional engine builders across all forms of motorsports competition.