ARP 134-6027 Cylinder Head Fasteners High Performance Chrome Moly - 8740

The ARP 134-6027 cylinder head fasteners are engineered to deliver exceptional clamping force and reliability in high-performance engine applications. Manufactured from premium 8740 chrome moly steel, these fasteners provide the strength and durability needed to maintain proper head gasket seal under extreme combustion pressures and thermal cycling.

Key Features:

• Forged in-house at ARP using premium 8740 chrome moly steel for consistent quality
• Heat-treated using special vertical racks to ensure complete 360-degree penetration for uniform strength
• Threads rolled after heat-treat to provide up to 10 times longer fatigue life compared to cut threads
• Precision CNC-machined to exacting specifications for proper fit and function
• Designed specifically for optimal reliability in cylinder head clamping applications
• Each fastener proudly stamped with the ARP name as assurance of quality

About 8740 Chrome Moly Material:

ARP's 8740 chrome moly steel is a proven quench and temper alloy that delivers tensile strengths between 180,000 and 210,000 psi. This material offers excellent toughness with adequate fatigue properties for most racing and high-performance applications. The post-heat-treat thread rolling process significantly enhances fatigue strength while maintaining proper thread form and fit.

ARP fasteners are the choice of professional engine builders and racers worldwide who demand absolute reliability from their engine components. Every ARP fastener undergoes rigorous quality control to ensure it meets the company's exacting standards for precision, strength, and consistency.