ARP Pro Series cylinder head studs are cold-forged to ensure molecular integrity. They're heat-treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12-point nuts, and all studs come complete with hardened parallel washers for an even load distribution and accurate torque readings. With hundreds of models ready to ship, these cylinder head fasteners can be ordered for virtually any style engine.

Features
Fastener Style: Stud
Thread Size: M11 x 1.5
Undercut Stud: No
Head Style: 12-point
Fastener Material: ARP2000
Fastener Finish: Black oxide
Washers Included: Yes
 
Benefits
Cold-forged to ensure molecular integrity
Heat-treated prior to thread rolling and machining