ARP 235-4714 High Performance Cylinder Head Stud Kit Chrome Moly - 8740

The ARP 235-4714 cylinder head stud kit delivers professional-grade clamping force and reliability for high-performance and racing applications. Engineered from premium 8740 chrome moly steel and heat-treated to 200,000 psi, these studs provide superior strength and durability compared to standard head bolts.

Key Features:

• Premium 8740 chrome moly alloy rated at 200,000 psi tensile strength
• Undercut studs on shorter fasteners for equalized stretch and consistent clamping force
• 12-point head design for improved tool engagement and accessibility
• Centerless ground after heat-treat for exceptional concentricity and straightness
• Thread rolled after heat-treat for 10x better fatigue strength
• Includes hardened parallel-ground washers for even load distribution
• Precision manufacturing ensures proper alignment of gaskets and cylinder heads

Why Choose Studs Over Bolts:

Head studs offer significant advantages for performance applications. Unlike bolts, which experience torsional stress during installation, studs stretch purely along the vertical axis when torqued. This results in more accurate and consistent clamping loads. Studs also simplify engine assembly and cylinder head removal, making them the preferred choice for racing engines that require frequent service.

Installation Note:

Install studs finger-tight in a relaxed mode—never force them in with a jammed nut. The undercut design on shorter studs compensates for head gasket compression and helps prevent blown gaskets. Always re-torque after initial engine break-in as the gasket compresses.

Trusted by professional engine builders across all forms of motorsport, ARP fasteners meet the company's zero-defect, zero-failure quality standard. Each stud is individually heat-treated in vertical racks for complete penetration and optimal material properties.