ARP 194-6001 Connecting Rod Bolt Kit Chrome Moly - 8740

The ARP 194-6001 is a high-performance connecting rod bolt kit manufactured from 8740 chrome moly steel. This complete kit provides the reliability and strength demanded by racing and high-performance engine builders. ARP rod bolts are recognized as the industry standard, chosen by leading connecting rod manufacturers as original equipment due to their superior fatigue strength—testing shows ARP bolts deliver up to 10 times the fatigue life of competing fasteners.

Key Features:

• Forged in-house at ARP using premium quality 8740 chrome moly steel
• Heat-treated using special vertical racks to ensure complete 360-degree penetration
• Threads rolled after heat-treat to provide up to 10 times longer fatigue strength
• Precision CNC-machined to exacting specifications for optimal performance
• Each bolt proudly stamped with the ARP name as assurance of quality

Wave-Loc Technology Benefits:

• Wave-Loc surface contacts the rod and cap for optimum alignment and reduction of fluctuating stress
• Provides snug interference fit (.001 to .005 range) for all OEM connecting rods despite wide factory tolerances
• Superior material grain flow compared to knurled bolts that have sharp edges and stress risers
• Virtually eliminates galling and scoring of the rod through smooth contact design

About 8740 Chrome Moly Material:

8740 chrome moly is a proven quench and temper steel with excellent toughness and adequate fatigue properties for most racing applications. Heat-treated to deliver tensile strengths between 180,000 and 210,000 psi, this material provides reliable performance when threads are rolled after heat-treatment—standard ARP practice. This material offers the most cost-effective solution for applications where bolt strength adequately handles anticipated loads plus a safety margin.

Important Maintenance Note:

Monitor the stretch of each bolt and replace when it has permanently elongated by .0005 inches to maintain optimal connecting rod reliability and safety.