ARP 141-6021 Cylinder Head Fasteners High Performance Bolt - Set

ARP 141-6021 high-performance cylinder head fasteners are engineered to deliver exceptional clamping force and reliability in demanding 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 temperatures.

Key Features:

• Constructed from high-strength 8740 chrome moly steel with tensile strength between 180,000-210,000 psi
• Forged in-house at ARP using aerospace-quality materials and processes
• Heat-treated on special vertical racks to ensure complete 360-degree penetration for uniform strength
• Threads rolled after heat-treatment to provide up to 10 times longer fatigue life compared to cut threads
• Precision CNC-machined to exacting tolerances for consistent clamping loads
• Each fastener proudly stamped with the ARP name as assurance of quality

ARP fasteners are the choice of professional engine builders and racers worldwide who demand absolute reliability. The superior manufacturing process, including post heat-treat thread rolling, creates fasteners with exceptional fatigue resistance that far exceeds conventional bolts. Whether you're building a high-performance street engine or a competition powerplant, ARP 141-6021 cylinder head fasteners provide the peace of mind that comes from using the industry's finest engine fasteners.