Carrillo SC7654-1 Pro-H Single Connecting Rod with WMC Bolt

The Carrillo SC7654-1 is a high-performance single connecting rod from CP-Carrillo, the globally recognized leader in precision-engineered connecting rods for motorsport and high-performance street applications. Sold individually, this rod is part of Carrillo's Pro-H series, featuring a straight H-beam design that delivers an exceptional balance of strength and reduced reciprocating mass.

Key Features:

• Proprietary Carrilloy Steel: Manufactured from CP-Carrillo's proprietary 4330m chromoly alloy — a chrome, nickel, moly, vanadium blend meeting all VAR (Vacuum Arc Re-Melt) ASTM standards for maximum material integrity
• Oversized Forgings: Each rod is machined from oversized forgings to ensure proper grain flow and removal of any surface inclusions generated during the forging process
• H-Beam Construction: Straight H-beam profile provides excellent strength-to-weight ratio and reduced reciprocating mass for improved engine response
• WMC (H11 Tool Steel) Rod Bolt: Equipped with Carrillo's WMC-H7 H11 Tool Steel fastener rated at 220,000 psi ultimate tensile strength with asymmetrical threads for even load distribution and improved fatigue life
• Shot Peened Finish: A controlled shot peen operation relieves tensile stresses and replaces them with beneficial compressive stresses to increase fatigue life
• Magnaflux Inspected: Each rod is magnafluxed a minimum of twice during production to identify and eliminate any surface flaws
• Rockwell Hardness Tested: Every rod is individually Rockwell tested to validate the heat treat procedure
• Laser-Etched Job Number: A job number is laser-etched onto each rod for full traceability
• Includes Specification Card: Each rod ships with a detailed spec card displaying the part number, critical dimensions, weight, job number, and bolt installation chart
• Made in the USA: Manufactured at CP-Carrillo's state-of-the-art facility in Irvine, California

CP-Carrillo has been the benchmark in connecting rod manufacturing since 1963, supplying rods to virtually every major automotive and motorsport platform. The SC7654-1 is sold as a single rod, making it ideal as a replacement or when building custom rod sets to precise weight tolerances.