ARP 154-6023 Connecting Rod Bolt Kit High Performance Chrome Moly - 8740

The ARP 154-6023 is a high-performance connecting rod bolt kit engineered from premium 8740 chrome moly steel. This 2-piece kit delivers the reliability and strength that professional engine builders and racers demand for high-stress applications.

Why ARP Rod Bolts are Superior:

ARP rod bolts are chosen as OEM equipment by leading connecting rod manufacturers because they represent the industry standard for strength and reliability. Extensive fatigue testing demonstrates that ARP rod bolts deliver up to ten times the fatigue strength of competing fasteners, making them the trusted choice for applications where failure is not an option.

8740 Chrome Moly Material:

The 8740 chrome moly alloy offers excellent toughness with adequate fatigue properties for most racing applications. This quench and temper steel is heat-treated to deliver tensile strengths between 180,000 and 210,000 psi, providing a cost-effective solution that balances performance with value. The 8740 material is ideal for applications where bolt strength matches anticipated loads plus a safety margin.

Key Features:

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

Wave-Loc Technology Benefits:

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

Important Maintenance Note:

Monitor stretch on each bolt and replace when permanent elongation reaches .0005 inches to maintain optimal performance and safety.