ARP 204-5403 Main Cap Stud Kit for Main Applications - 2-Bolt

ARP's 204-5403 main stud kit delivers superior clamping force and reliability for 2-bolt main engine blocks. Engineered to eliminate main cap walk and fretting while protecting your engine block's threads, this complete kit provides the foundation for a bulletproof bottom end in high-performance and racing applications.

Key Features:

• Manufactured from premium 8740 chrome moly steel for exceptional strength
• Heat-treated in-house to 200,000 psi tensile strength
• Precision J-form threads rolled after heat-treatment for 1000% greater strength than conventional fasteners
• Includes hardened parallel-ground washers and high-quality nuts
• Complete kit for 2-bolt main cap configurations
• Eliminates main cap walk and fretting under extreme loads
• Protects engine block threads from damage during installation and removal

ARP's post-heat-treat thread rolling process creates a fastener with superior fatigue resistance and thread integrity. The hardened washers ensure even load distribution across the main cap surface, while the precision-manufactured studs maintain consistent clamping force under the extreme conditions of high-performance and competition engines. This kit is the preferred choice of professional engine builders who demand reliability and performance from their bottom-end fasteners.