Carrillo BBCR5306-030 Bullet Race Series Big Block Chevy Piston Set +0.030 Over

The Carrillo BBCR5306-030 is a high-performance forged connecting rod engineered for Big Block Chevy applications demanding maximum strength and reliability. Manufactured by CP-Carrillo in Irvine, California, this rod is built from the brand's proprietary Carrilloy steel — a chrome, nickel, moly, vanadium alloy that meets all VAR (Vacuum Arc Re-Melt) ASTM standards — delivering strength and durability far beyond OEM components.

Each rod is CNC-machined from an oversized forging to ensure correct grain flow and eliminate surface inclusions. Every unit undergoes a rigorous multi-step quality inspection process, including dual Magnaflux (MPI) testing, Rockwell hardness validation, and a final shot peen operation to relieve tensile stresses and improve fatigue life.

Key Features:

• Forged from proprietary Carrilloy (4330M chromoly) steel — chrome, nickel, moly, vanadium alloy
• Meets all VAR (Vacuum Arc Re-Melt) ASTM material standards
• CNC-machined from oversized forgings for optimal grain flow
• Each rod magnafluxed twice and Rockwell hardness tested
• Final controlled shot peen operation for maximum fatigue resistance
• Laser-etched job number on each rod for full material traceability
• Compatible with Carrillo WMC and CARR high-strength rod bolt systems
• Designed for Big Block Chevy high-horsepower and racing applications
• Manufactured in the USA

CP-Carrillo connecting rods are trusted by professional engine builders and racers worldwide. The BBCR5306-030 is engineered to withstand the extreme loads of boosted, nitrous, and all-out competition Big Block Chevy builds where OEM and standard aftermarket rods simply cannot keep up.