ARP 112-6001 Connecting Rod Bolt Kit Chrome Moly - 8740

The ARP 112-6001 is a high-performance connecting rod bolt kit manufactured from 8740 chrome moly steel. Designed to eliminate the weak link in connecting rod assemblies, these bolts deliver superior fatigue strength and reliability for racing and high-performance applications. Each bolt is forged in-house using premium materials and undergoes ARP's rigorous quality control processes to ensure consistent performance under extreme loads.

Key Features:

• Forged in-house from 8740 chrome moly steel with tensile strength of 180,000-210,000 psi
• Threads rolled after heat-treatment for up to 10 times longer fatigue strength compared to competitors
• Heat-treated using special vertical racks to ensure complete 360-degree penetration
• Precision CNC-machined to exacting specifications for optimal fit and performance
• Wave-Loc surface design (where applicable) provides interference fit of .001 to .005 inches for superior rod alignment
• Wave-Loc design eliminates galling and scoring while reducing fluctuating stress
• Each bolt proudly stamped with ARP name as assurance of quality
• Complete kit includes all necessary fasteners for the application

Material Advantages:

8740 chrome moly is a quench and temper steel that offers excellent toughness and adequate fatigue properties for most racing applications. When threads are rolled after heat-treatment—standard ARP practice—this material provides reliable performance at a cost-effective price point. This material is ideal for applications where bolt strength matches anticipated loads plus a safety margin, making it the perfect balance of performance and value.

Important Installation Note:

Monitor bolt stretch regularly and replace any bolt that has permanently elongated by .0005 inches to maintain optimal clamping force and reliability.