ARP 190-6001 Cylinder Head Fasteners High Performance 8740 Chrome Moly

The ARP 190-6001 cylinder head fasteners deliver the legendary strength and reliability that engine builders have trusted for decades. Manufactured from premium 8740 chrome moly steel, these fasteners are engineered to handle the extreme clamping loads required in high-performance and racing applications.

Key Features:

• 8740 chrome moly construction with 180,000-210,000 psi tensile strength
• Forged in-house at ARP using premium quality materials
• Heat-treated using specialized vertical racks for complete 360-degree penetration
• Threads rolled after heat treatment for up to 10 times longer fatigue life
• Precision CNC-machined to exacting specifications
• Application-specific design for optimal reliability

Why ARP 8740 Chrome Moly:

While modern super alloys offer higher tensile strengths, 8740 chrome moly represents an excellent balance of strength, toughness, and value for most performance applications. As a quench and temper steel, it delivers adequate fatigue properties when threads are rolled after heat treatment—a standard ARP manufacturing practice that sets these fasteners apart from the competition.

ARP Quality Difference:

ARP fasteners have been proven through rigorous testing to deliver up to ten times the fatigue strength of competing products. Each fastener is proudly stamped with the ARP name as your assurance of quality and performance. When properly installed and maintained, ARP fasteners provide the reliability and peace of mind needed for demanding racing and performance applications.