Duramax 6.6 LB7 LLY LBZ and LMM 6.418 XD 7/16 bolts 2001-2010

Carrillo has been a renowned custom connecting rod manufacturer since 1963, supplying high-performance and speed equipment industries. Their products are recognized for meticulous attention to detail, advanced processing, and proprietary materials. Carrillo offers both H-beam and A-beam configurations; the Pro-A beam is designed for less demanding, high-performance, aftermarket applications requiring an economical solution. Crafted from a proprietary chrome, nickel, moly, and vanadium alloy (meeting VAR ASTM standards). Material undergoes rigorous heat treatment, achieving UTS of 195,000 and yield strength of 182,000, while preserving low notch-sensitivity and ductility. Manufacturing process includes oversized forging for optimal grain flow, removal of potential inclusions, precise CNC machining with probing for dimensional integrity, a minimum of two magnaflux inspections, Rockwell testing for heat treatment validation, and a final shotpeen operation for enhanced durability.