ARP 233-4704 Cylinder Head Stud Kit Chrome Moly - 8740 12-Point

The ARP 233-4704 head stud kit delivers professional-grade cylinder head clamping force for high-performance and racing engines. Manufactured from premium 8740 chrome moly steel and heat-treated to 200,000 psi tensile strength, these studs provide the reliability that top engine builders demand in competition powerplants.

Superior Manufacturing Process:

• Premium 8740 chrome moly alloy rated superior to aircraft quality
• Vertical rack heat-treatment to 200,000 psi ensures complete and uniform heat penetration
• Centerless ground after heat-treat for near-perfect concentricity and straightness
• Thread rolled after heat-treat for 10x better fatigue strength than pre-heat-treat threading
• Undercut design on shorter studs equalizes stretch for consistent clamping force
• 12-point heads with wide-area flange eliminate need for valve train removal during retorquing

Key Benefits:

• Precise tolerances allow cylinder heads and gaskets to glide into perfect alignment during assembly
• Studs install in relaxed mode and stretch only on vertical axis when torqued, providing more accurate and consistent clamping than bolts
• Undercut studs compensate for head gasket compression to help prevent blown gaskets
• Hardened parallel-ground washers included for even load distribution and accurate torque readings
• Each stud stamped with ARP for quality assurance

Ideal for racing and high-performance applications where maximum clamping reliability is essential. Studs provide easier assembly and more consistent torque loading compared to head bolts, making them the preferred choice when engine bay clearance permits their use.