ARP / Fleece / Freedom / Haisley Machine
ARP's L19 12 mm head stud kit is a perfect compliment to your Freedom Series Cylinder Heads and will handle up to 1,000 hp.
L19 is a premium steel that is processed to deliver superior strength and fatigue properties and is capable of delivering a clamp load at 260,000 psi. It is primarily used in racing applications where inertia loads exceed the clamping capability of ARP2000.
Installation Instructions located on our Resources Page or here