ARP 109-6001 Cylinder Head Fasteners High Performance Chrome Moly - 8740

The ARP 109-6001 cylinder head fastener kit delivers the precision and reliability that engine builders demand for high-performance applications. Manufactured from premium 8740 chrome moly steel, these fasteners are engineered to provide superior clamping force and durability under extreme conditions.

Key Features:

• Forged in-house at ARP using premium 8740 chrome moly steel for exceptional strength and toughness
• Heat-treated using specialized vertical racks to ensure complete 360-degree penetration for uniform material properties
• Threads rolled after heat-treat to deliver up to 10 times greater fatigue strength compared to cut threads
• Precision CNC-machined to exacting tolerances for consistent performance
• Complete kit includes all necessary fasteners for installation
• Each fastener features the ARP name stamp as your assurance of quality

About 8740 Chrome Moly Material:

8740 chrome moly is a proven quench and temper steel offering excellent toughness with adequate fatigue properties for most racing and performance applications. Heat-treated to deliver tensile strengths between 180,000 and 210,000 psi, this material provides the optimal balance of strength, reliability, and cost-effectiveness for demanding engine builds.

ARP fasteners are trusted by professional engine builders and racers worldwide for their superior quality, consistent performance, and exceptional fatigue life. When maximum clamping force and reliability matter, ARP delivers the solution.