ARP 234-6401 Connecting Rod Bolt Kit Pro Wave-Loc Series - ARP2000

The ARP 234-6401 is a complete connecting rod bolt kit featuring ARP2000 material with the innovative Pro Wave-Loc Series design. These precision-engineered fasteners are designed to eliminate the weakest link in any connecting rod assembly, delivering exceptional reliability for high-performance and racing applications.

ARP2000 Material Advantages:

ARP2000 is a premium alloy steel heat-treated to achieve superior strength compared to standard 8740 chrome moly. Capable of delivering clamp loads at 220,000 psi, this material is widely used in short track and drag racing applications for both steel and aluminum connecting rods, providing an ideal balance of strength, reliability, and cost-effectiveness.

Wave-Loc Technology:

• Patented Wave-Loc surface contacts the rod and cap for optimal alignment and reduced fluctuating stress
• Provides interference fit of .001 to .005 inches for all OEM connecting rods, accommodating wide factory tolerances
• Superior material grain flow compared to knurled bolts that create stress risers
• Eliminates galling and scoring through smooth contact without sharp edges
• Strengthens the connecting rod itself by reducing stress concentrations

ARP Manufacturing Excellence:

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

Critical Maintenance Note:

Monitor bolt stretch regularly and replace any bolt that has permanently elongated by .0005 inches to maintain optimal performance and safety.

Testing has demonstrated that ARP rod bolts deliver ten times the fatigue strength of competing fasteners, making them the trusted choice of connecting rod manufacturers and professional engine builders worldwide.