ARP 204-6001 Connecting Rod Bolt Kit ARP2000 Pro Wave-Loc Series

The ARP 204-6001 is a complete connecting rod bolt kit featuring ARP2000 alloy steel fasteners with the innovative Wave-Loc design. Engineered to be the strongest link in your connecting rod assembly, these precision-manufactured bolts deliver superior reliability and fatigue resistance for high-performance and racing applications.

ARP2000 Material Advantages:

ARP2000 alloy steel is heat-treated to achieve a clamping load at 220,000 psi, significantly stronger than standard 8740 chrome moly. This advanced material provides an excellent upgrade for both steel and aluminum connecting rods in short track and drag racing applications, with superior resistance to stress corrosion and hydrogen embrittlement when properly installed.

Wave-Loc Technology Benefits:

• Precision-ground Wave-Loc surface contacts rod and cap for optimal alignment and reduced fluctuating stress
• Interference fit range of .001" to .005" accommodates wide range of OEM rod bolt hole tolerances
• Superior material grain flow compared to knurled bolts that create stress risers
• Smooth contact surface virtually eliminates galling and scoring of connecting rod
• Strengthens the connecting rod itself by reducing stress concentrations

ARP Quality Features:

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

Important Service Note: Monitor bolt stretch regularly and replace any bolt that has permanently elongated by .0005" to maintain optimal performance and reliability.