Carrillo CR8072 Pro-H H-Beam Connecting Rods 6.125" CARR Bolt

Featuring a 6.125-inch center-to-center length, a 2.100-inch big-end journal bore, and a 0.927-inch wrist pin diameter, these rods are engineered to handle extreme loads in demanding race environments. Each rod is fitted with Carrillo's premium CARR (MP35N Multiphase) rod bolts, offering an ultimate tensile strength of 285,000 PSI — a significant step above standard H-11 tool steel fasteners.

Key Features:

• Pro-H straight H-beam design — optimized for high-load, high-RPM race applications
• Carrilloy proprietary alloy steel — chrome, nickel, moly, vanadium blend meeting all VAR (vacuum arc re-melt) ASTM standards
• Oversized forgings — ensures proper grain flow and removal of surface inclusions from the forging process
• 100% CNC machined — extreme tolerances held throughout the entire manufacturing process
• Double magnaflux inspected — each rod is magnafluxed at least twice during production for crack detection
• Rockwell hardness tested — every rod is individually tested to validate the heat treat procedure
• Shot peened finish — relieves tensile stress and replaces it with beneficial compressive stress to maximize fatigue life
• CARR MP35N rod bolts included — 285,000 UTS multiphase fasteners with patented asymmetrical thread design for superior clamping load
• Set balanced to ±1 gram — matched set precision balanced for smooth engine operation
• Laser-engraved job number — full traceability on every rod
• Made in the USA — manufactured at CP-Carrillo's facility in Irvine, California

Each set ships with a specification card detailing critical dimensions, weights, job number, and bolt installation data. CP-Carrillo also offers a reconditioning service for these rods, which includes magnaflux inspection, straightness and alignment checks, re-honing, and re-bushing.