ARP 206-6021 Cylinder Head Stud Kit

The ARP 206-6021 cylinder head stud kit provides superior clamping force and reliability for high-performance and racing engine applications. These precision-engineered fasteners are designed to maintain consistent cylinder head gasket compression under extreme conditions, preventing head gasket failure and ensuring optimal engine sealing.

Key Features:

• Manufactured from premium 8740 chrome moly steel for excellent strength and durability
• Heat-treated to achieve tensile strength between 180,000-210,000 psi
• Threads rolled after heat-treat for up to 10 times greater fatigue strength
• Precision CNC-machined to exacting tolerances for consistent performance
• Forged in-house at ARP using only the finest quality materials
• Vertical rack heat-treatment process ensures complete 360-degree penetration
• Each fastener stamped with ARP name as assurance of quality

About 8740 Chrome Moly Material:

ARP's 8740 chrome moly alloy is a quench and temper steel that delivers excellent toughness with adequate fatigue properties for most racing applications. When threads are rolled after heat-treatment following ARP's standard production practice, this material provides reliable performance in demanding environments while remaining cost-effective for budget-conscious builds.

Installation Note:

Proper installation with ARP Ultra-Torque fastener assembly lubricant and adherence to specified torque values is essential for optimal performance and reliability.