ARP 250-6404 Connecting Rod Bolt Kit Pro Wave-Loc Series - ARP2000

The ARP 250-6404 is a complete connecting rod bolt kit featuring ARP2000 alloy steel fasteners with the innovative Pro Wave-Loc design. These precision-engineered bolts are designed to eliminate the traditional weak link in connecting rods, providing superior strength and reliability for high-performance and racing applications.

ARP2000 Material Advantages:

ARP2000 alloy steel delivers exceptional strength with a clamping load capacity of 220,000 psi, making it a significant upgrade from standard 8740 chrome moly bolts. This material is widely trusted in short track and drag racing applications for both steel and aluminum connecting rods, offering superior fatigue resistance while maintaining reliable performance when properly installed.

Wave-Loc Technology Benefits:

• Wave-Loc surface design contacts the rod and cap for optimal alignment and stress reduction
• Provides secure interference fit (.001 to .005 range) accommodating OEM rod bolt hole tolerances
• Superior material grain flow compared to knurled bolts that create stress risers
• Eliminates galling and scoring with smooth contact surfaces
• Strengthens the connecting rod assembly by reducing fluctuating stress

ARP Manufacturing Excellence:

• Forged in-house from premium quality materials
• Heat-treated using vertical racks ensuring complete 360-degree penetration
• Threads rolled after heat-treatment providing up to 10 times longer fatigue life
• Precision CNC-machined to exacting specifications
• Each bolt proudly stamped with the ARP name as assurance of quality

Important Service Note: Monitor bolt stretch regularly and replace when permanent elongation reaches .0005 inches to maintain optimal performance and safety.

This complete kit provides everything needed for a professional connecting rod bolt upgrade, delivering the strength and reliability that has made ARP the choice of connecting rod manufacturers and racers worldwide.