ARP Main Studs

ARP main studs are crafted from premium grade 8740 chrome moly steel and are heat-treated to achieve a tensile strength of 200,000 psi. The precision J-form threads are rolled after heat treatment, resulting in threads that are 2000% stronger than standard options. These main studs effectively reduce crankshaft flex and main cap fretting, ensuring enhanced performance and reliability.

Key Features:

• Premium grade 8740 chrome moly steel
• 200,000 psi tensile strength
• J-form rolled threads
• Includes hardened parallel-ground washers and aerospace quality nuts