ARP 190-6003 Cylinder Head Fasteners High Performance Chrome Moly - 8740

The ARP 190-6003 cylinder head fastener kit delivers the reliability and precision engineering that professional engine builders demand. Manufactured from premium 8740 chrome moly steel, these fasteners are designed to provide superior clamping force and resistance to fatigue in high-performance applications.

Premium Manufacturing Process:

• Forged in-house at ARP facilities using only the finest quality materials
• Heat-treated using specialized vertical racks to ensure complete 360-degree penetration
• Threads rolled after heat treatment to provide up to 10 times longer fatigue life
• Precision CNC-machined to exacting specifications for consistent performance
• Each fastener proudly stamped with the ARP name as assurance of quality

8740 Chrome Moly Material:

The 8740 chrome moly steel used in these fasteners is a proven quench and temper alloy that delivers tensile strengths between 180,000 and 210,000 psi. This material offers excellent toughness with strong fatigue properties for demanding racing and performance applications. ARP's post-heat-treat thread rolling process significantly enhances the material's fatigue resistance compared to conventional manufacturing methods.

Application Notes:

ARP fasteners are engineered specifically for each application to optimize reliability and performance. Proper installation procedures, including the use of appropriate lubricants and torque specifications, are essential for achieving maximum clamping force and fastener longevity. These fasteners should be inspected regularly and replaced if permanent elongation exceeds 0.0005 inches.

Whether you're building a street performance engine or a dedicated race motor, ARP 190-6003 fasteners provide the strength and consistency needed to keep your cylinder heads securely attached under extreme conditions.