We understand how important the roll of a head stud is in your high performance motor. That's why we put so much effort into manufacturing these to our idea of perfection. By exposing these studs to a heat treatment and rolling each stud individually, it provides a unique, perfectly straight finish that ensures strength and consistency in every stud.
Manufactured with ARP 2000 "superior to aircraft" Tool Steel, the Cosworth 11mm ARP Head Studs are meant to reduce cylinder head movement and to optimize head to cylinder sealing in high boost engines. With a tensile strength of 220,000 psi they will easily meet and exceed your needs and expectations; whether your on a raceway or the drag strip.
We pride ourselves on ensuring every stud that we put our name on by running strenuous testing and performance standards before they'll sold to the public. Push your power to the limit and know that these will be able to hold up under extreme pressure, heat, and constant, high-intensity wear and tear.