ARP 235-5603 Main Cap Stud Kit Chrome Moly - 4-Bolt

The ARP 235-5603 Main Cap Fastener Kit provides professional-grade engine block security for high-performance and racing applications. This 4-bolt main stud kit eliminates main cap walk and fretting while protecting the threads in your engine block from damage during repeated assembly and disassembly.

Key Features:

• Manufactured from premium 8740 chrome moly steel for exceptional strength and durability
• Heat-treated in-house to 200,000 psi tensile strength for maximum clamping force
• Precision J-form threads rolled after heat-treat provide 1000% stronger fatigue life than conventional fasteners
• Includes hardened parallel-ground washers for even load distribution
• High-quality nuts ensure consistent and reliable torque retention
• Select applications include specially designed standoff studs with serrated lock nuts for windage tray mounting

ARP main studs are the preferred choice of professional engine builders who demand exacting standards and reliability in competition engines. The rolled thread design creates a superior fastener that resists fatigue and maintains clamping force under extreme conditions, making this kit an essential upgrade over OEM fasteners.