Carrillo SC7517-4 Pro-H Connecting Rod

Built to withstand extreme cylinder pressures and high-rpm operation, these rods represent CP-Carrillo's renowned commitment to precision manufacturing and motorsport-proven durability.

Key Features:

• Proprietary Carrilloy Steel: Manufactured from CP-Carrillo's exclusive chrome, nickel, moly, vanadium alloy (4330M) that meets all VAR (vacuum arc re-melt) ASTM standards for maximum strength and fatigue resistance
• USA Made: Each rod is machined in the USA from oversized proprietary steel forgings to ensure proper grain flow and eliminate surface inclusions
• Rigorous Quality Control: Every rod is magnafluxed a minimum of twice and Rockwell tested to validate the heat treatment procedure before leaving the facility
• Shot Peened Finish: A controlled shot peen operation relieves tensile stresses and introduces beneficial compressive stresses to maximize fatigue life
• High-Strength Fasteners: Includes CP-Carrillo's precision rod bolts engineered to a known yield load, with recommended assembly lubricant included
• CNC Precision Machined: All critical CNC operations are probe-validated to ensure tight dimensional tolerances throughout production

CP-Carrillo connecting rods are the choice of professional engine builders and racers across drag racing, road racing, off-road, and powersports disciplines. The SC7517-4 delivers the strength, reliability, and consistency that high-performance and forced-induction builds demand.