ARP 235-5602 Main Cap Fastener Kit Main Stud Kit - 4-Bolt

The ARP 235-5602 is a premium main stud kit designed for 4-bolt main engine applications. This complete fastener system eliminates main cap walk and fretting while protecting the threads in your engine block, ensuring superior reliability in high-performance and competition engines.

Key Features:

• Manufactured from 8740 chrome moly steel for exceptional strength and durability
• Heat-treated in-house to 200,000 psi tensile strength
• Precision J-form threads rolled after heat-treat for 1000% stronger threads compared to conventional fasteners
• Includes hardened parallel-ground washers and high-quality nuts
• Complete kit with all necessary hardware for installation
• Generous under-head radius design for improved reliability
• Rolled threads after heat-treating provide significantly longer fatigue life

ARP main studs are the preferred choice of professional engine builders for race and high-performance applications. The superior materials and manufacturing process ensure consistent clamping force and long-term durability under extreme conditions. Each component is precision-manufactured to meet the exacting standards required for competition engines.