ARP 245-4306 High Performance Cylinder Head Stud Kit Chrome Moly - 8740 12-Point

The ARP 245-4306 cylinder head stud kit delivers professional-grade engine fastening performance using premium 8740 chrome moly steel construction. Engineered for high-performance and racing applications, these head studs provide superior clamping force and reliability compared to conventional head bolts.

Key Features:

• Premium 8740 chrome moly alloy rated at 200,000 psi tensile strength
• 12-point head design for precise torque application
• Vertical rack heat-treatment ensures complete and consistent heat penetration
• Centerless ground for exceptional concentricity and straightness
• Thread rolled after heat-treat for 10x better fatigue strength
• Undercut short studs equalize stretch for consistent clamping force
• Includes hardened parallel-ground washers for even load distribution

Manufacturing Excellence:

• Cold-forged to maintain molecular integrity
• Precision centerless grinding ensures perfect alignment of gaskets and cylinder heads
• Post-heat-treat thread rolling maximizes fatigue resistance
• Each stud marked with ARP stamp for authenticity

Performance Benefits:

• Studs provide more accurate and consistent torque loading than bolts
• Installation in relaxed mode eliminates torsional stress during assembly
• Vertical-only stretch ensures optimal clamping force
• Undercut design compensates for head gasket compression
• Helps prevent head gasket failures and ensures superior engine sealing
• Facilitates easier engine assembly and disassembly for racing applications

ARP Pro Series head studs are the choice of professional engine builders across all forms of motorsports. The superior manufacturing process and material quality make these fasteners ideal for high-performance street engines and competition powerplants where reliability and consistency are critical.