ARP Pro Series Cylinder Head Studs
ARP Pro Series cylinder head studs are cold-forged to maintain molecular integrity, ensuring exceptional strength and reliability. Each stud is heat-treated before thread rolling and machining for maximum durability and performance.
Pro Series kits are available with 12-point nuts and include hardened parallel-ground washers to provide even load distribution and accurate torque readings. With hundreds of models ready to ship, these high-quality cylinder head fasteners are available for virtually any engine configuration.