ARP 200-6226 Connecting Rod Bolt Kit for Aluminum Rods

The ARP 200-6226 is a high-performance connecting rod bolt kit designed specifically for Venolia, Brooks, and KB aluminum connecting rods. This 2-piece kit includes premium ARP2000 Pro Series bolts with washers, engineered to deliver superior reliability in high-performance engine builds.

ARP2000 Material Advantages:

These bolts are manufactured from ARP2000 alloy steel, a material capable of achieving clamp loads at 220,000 psi—significantly higher than standard 8740 chrome moly. This increased clamping force provides enhanced reliability in demanding racing applications while maintaining resistance to stress corrosion and hydrogen embrittlement when properly installed.

Key Features:

• Forged in-house at ARP using premium quality materials
• Heat-treated using specialized vertical racks for complete 360-degree penetration
• Threads rolled after heat-treat to provide up to 10 times longer fatigue strength
• Precision CNC-machined to exacting specifications
• Includes washers for proper installation
• Designed specifically for aluminum connecting rod applications

Performance Benefits:

ARP rod bolts have demonstrated ten times the fatigue strength of competitor fasteners in independent testing. Each bolt is forged and heat-treated to precise specifications, then finished with rolled threads that significantly improve fatigue life. The ARP name is stamped on each bolt as assurance of quality and authenticity.

Maintenance Recommendation:

Monitor bolt stretch during use and replace any bolt that has permanently elongated by 0.0005 inches to maintain optimal clamping force and engine reliability.