ARP 300-6701 Custom Age 625+ Connecting Rod Bolt Kit 16-Piece

The ARP 300-6701 is a premium 16-piece connecting rod bolt kit designed as a direct replacement for Carrillo, Lentz, and Ferrea connecting rods. Manufactured from ARP's advanced Custom Age 625+ super-alloy material, these bolts deliver exceptional fatigue cycle life, tensile strength of 260,000-280,000 psi, and complete resistance to atmospheric corrosion and oxidation. This kit does not include washers.

Key Features:

• Custom Age 625+ super-alloy construction for superior strength and durability
• Forged in-house at ARP using premium quality materials
• 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
• Complete immunity to hydrogen embrittlement and stress corrosion
• 16 bolts per kit (washers not included)
• ARP name proudly stamped on each bolt for quality assurance

About Custom Age 625+:

Custom Age 625+ is ARP's newly formulated super-alloy that demonstrates superior performance characteristics compared to traditional materials. It offers excellent fatigue cycle life, high tensile strength, and exceptional toughness while being less expensive than other super-alloys in its class. This material is completely resistant to atmospheric corrosion and oxidation, making it ideal for high-performance racing applications where reliability and longevity are critical.

Application:

Designed specifically for aftermarket connecting rods from Carrillo, Lentz, and Ferrea. These bolts are engineered to handle extreme loads in high-RPM racing environments including drag racing, road racing, and high-performance street applications. ARP recommends monitoring bolt stretch and replacing bolts when they have permanently elongated by 0.0005 inches.

ARP rod bolts are the choice of professional engine builders and racers worldwide, offering up to ten times the fatigue strength of competing fasteners. Each bolt is manufactured to strict quality standards to ensure optimal connecting rod service and reliability in the most demanding applications.