ARP 151-6002 High Performance Chrome Moly Connecting Rod Bolt Kit - 8740

The ARP 151-6002 is a complete connecting rod bolt kit engineered with ARP's legendary 8740 chrome moly material for reliable high-performance engine building. These precision fasteners are the weak link solution that racers and engine builders have trusted for decades, offering up to 10 times the fatigue strength of competitor bolts.

Why ARP Rod Bolts Are Superior:

ARP rod bolts deliver exceptional fatigue strength and reliability through their proprietary manufacturing process. Each bolt is forged in-house from premium 8740 chrome moly steel, capable of tensile strengths between 180,000 and 210,000 psi. The critical difference is in the process: threads are rolled after heat-treatment rather than before, which provides up to 10 times longer fatigue life compared to standard fasteners.

Key Features:

• Forged in-house from premium 8740 chrome moly steel
• Heat-treated using special vertical racks for complete 360-degree penetration
• Threads rolled after heat-treat for maximum fatigue strength
• Precision CNC-machined to exacting specifications
• Complete kit with all required fasteners
• ARP name stamped on each bolt for quality assurance

Wave-Loc Technology (if applicable to application):

• Patented Wave-Loc surface design provides optimum alignment between rod and cap
• Reduces fluctuating stress to strengthen the connecting rod itself
• Interference range of .001 to .005 inch accommodates wide range of OEM tolerances
• Superior material grain flow compared to knurled bolts with sharp stress risers
• Smooth contact surface virtually eliminates galling and scoring

About 8740 Chrome Moly Material:

8740 chrome moly is a proven quench and temper steel offering excellent toughness and adequate fatigue properties for most racing applications. While considered moderate strength by today's exotic alloy standards, it provides the most cost-effective solution for engines where bolt strength appropriately matches anticipated loads plus a safety margin. For extreme applications requiring higher clamping loads, ARP offers upgraded materials including ARP2000, L19, Aermet, and super-alloys.

Installation Note: Monitor bolt stretch regularly and replace any bolt that has permanently elongated by .0005 inch or more to maintain optimum safety and performance.