ARP 244-6401 Connecting Rod Bolt Kit Pro Wave-Loc Series - ARP2000

The ARP 244-6401 is a complete connecting rod bolt kit featuring ARP2000 alloy steel construction with the innovative Pro Wave-Loc design. Engineered to eliminate the weakest link in connecting rod assemblies, these premium fasteners deliver superior reliability and performance for high-stress racing applications.

ARP2000 Material Advantages:

ARP2000 alloy steel can be heat-treated to achieve higher strength levels than standard 8740 chrome moly, delivering exceptional clamping loads at 220,000 psi. This makes it an ideal upgrade for short track and drag racing applications in both steel and aluminum connecting rods, while maintaining resistance to stress corrosion and hydrogen embrittlement when properly installed.

Wave-Loc Technology:

• Patented Wave-Loc surface provides superior material grain flow compared to knurled bolts
• Optimizes alignment between rod and cap while reducing fluctuating stress
• Provides interference fit of .001 to .005 inches to accommodate factory rod bolt hole tolerances
• Smooth contact surface eliminates galling and scoring of connecting rod bores
• Eliminates sharp edges and stress risers found in traditional knurled designs

Premium Manufacturing Process:

• Forged in-house at ARP using premium quality materials
• Heat-treated on specialized vertical racks ensuring complete 360-degree penetration
• Threads rolled after heat-treat for up to 10 times longer fatigue life
• Precision CNC-machined to exacting tolerances
• ARP name stamped on each bolt as assurance of quality

Maintenance Recommendation:

Monitor bolt stretch regularly and replace any bolt that has permanently elongated by .0005 inches to maintain optimal clamping force and reliability.