ARP 154-6022 High Performance Rod Bolt Kit - 8740 Chrome Moly Series (2-Piece)

The ARP 154-6022 connecting rod bolt kit delivers the superior strength and reliability that professional engine builders demand. Manufactured from ARP's proven 8740 chrome moly alloy, these high-performance rod bolts are engineered to handle the extreme loads and stresses found in high-RPM racing applications. Each 2-piece kit is precision-crafted using ARP's exacting manufacturing standards to ensure consistent quality and performance.

Why ARP Rod Bolts Are Superior:

ARP rod bolts have been proven to deliver ten times the fatigue strength of competing fasteners, making them the choice of leading connecting rod manufacturers worldwide. Every bolt is forged in-house from premium materials and undergoes specialized heat treatment to achieve optimal strength characteristics. The threads are rolled after heat treatment—a critical process that dramatically improves fatigue life and reliability.

Key Features:

• Forged in-house from premium 8740 chrome moly steel
• 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
• Tensile strength between 180,000-210,000 PSI
• ARP name stamped on each bolt for quality assurance
• Includes premium ARP lubricant for proper installation

Wave-Loc Technology Benefits:

• Wave-Loc surface design optimizes alignment and reduces fluctuating stress
• Provides interference fit of .001 to .005 inches for secure installation
• Superior material grain flow compared to knurled designs
• Eliminates galling and scoring with smooth contact surface
• Accommodates wide range of factory rod bolt hole tolerances

About 8740 Chrome Moly Material:

ARP's 8740 chrome moly alloy offers excellent toughness and adequate fatigue properties for most racing applications. This quench and temper steel provides reliable performance when properly installed and maintained. While modern super-alloys offer higher ultimate strength, 8740 chrome moly delivers outstanding value and performance for street performance and many racing applications.

Important Installation Notes:

Always monitor bolt stretch during use and replace any bolt that has permanently elongated by .0005 inches or more. Use only ARP Ultra-Torque assembly lubricant or ARP moly paste for proper installation torque values. Follow ARP's torque specifications carefully to achieve optimal clamping force and reliability.