ARP 250-6302 Connecting Rod Bolt Kit

The ARP 250-6302 Connecting Rod Bolt Kit delivers the superior strength and reliability that ARP is known for in high-performance and racing applications. As the trusted choice of connecting rod manufacturers worldwide, ARP rod bolts are engineered to eliminate the weakest link in your engine's connecting rods. This complete kit provides everything needed to ensure your connecting rods can handle extreme loads and high RPM conditions with confidence.

Key Features:

• 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 compared to competitors
• Precision CNC-machined to exacting specifications
• Specially designed for optimum reliability in each application
• ARP name proudly stamped on each bolt 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 interference fit of .001 to .005 for all OEM connecting rods, despite wide range of factory tolerances
• Superior material grain flow compared to knurled bolts that have sharp edges and built-in stress risers
• Virtually eliminates galling and scoring of the rod through smooth contact without digging

Materials Available:

ARP connecting rod bolts are available in various material grades to match your specific performance requirements and budget. Common materials include 8740 Chrome Moly (180,000-210,000 psi), ARP2000 (220,000 psi), L19 (260,000 psi), Aermet (290,000-310,000 psi), Inconel 718 (210,000-230,000 psi), and Custom Age 625 Plus (260,000-280,000 psi). Each material is selected based on the loads carried by the bolts in terms of piston/rod weight and rotational engine speed.

Important Installation Note: Monitor the stretch of each bolt and replace it when it has permanently elongated by .0005 inch to maintain optimal performance and safety.

Whether you're building a budget street engine or an all-out race motor, ARP connecting rod bolts provide the strength, fatigue resistance, and reliability you need to keep your engine together under the most demanding conditions.