Carrillo SC81401-4 Forged H-Beam Connecting Rod

Built by CP-Carrillo in the USA, these rods are manufactured from the brand's proprietary Carrilloy (4330M chromoly steel) — a chrome, nickel, moly, vanadium alloy that meets VAR (vacuum arc re-melt) ASTM standards for exceptional strength and fatigue resistance.

Key Features:

• Forged from proprietary Carrilloy (4330M) high-strength chromoly steel alloy
• H-beam design provides superior strength-to-weight ratio over OEM rods
• Manufactured from oversized forgings to ensure proper grain flow and eliminate surface inclusions
• Each rod is magnaflux inspected twice and Rockwell hardness tested to validate heat treat procedure
• Shot-peened surface finish relieves tensile stress and improves fatigue life
• CNC-machined with probing for precise dimensional integrity
• Each rod laser-marked with job number for full traceability
• Includes race-spec rod fasteners
• Made in the USA

CP-Carrillo connecting rods are trusted by professional engine builders and racers across drag racing, endurance racing, and high-performance street applications. Every rod in this set is built to withstand extreme cylinder pressures and high RPM demands, making the SC81401-4 a reliable foundation for any serious performance engine build.