Carrillo BC1023-040 Forged Racing Piston 4.040 Bore -6.8cc Flat Top

The Carrillo BC1023-040 is a high-performance forged racing piston designed for Big Block Chevy engine applications. Built to CP-Carrillo's exacting standards, this piston features a 4.040" bore diameter, 3.750" stroke, 6.000" rod length, and a 1.125" compression height with a -6.8cc flat top dome configuration — ideal for naturally aspirated high-performance and racing builds.

Key Features:

• 4.040" Bore — precision-machined forged construction for consistent sizing and fitment
• -6.8cc Flat Top — optimized combustion chamber volume for performance compression ratios
• 1.125" Compression Height — designed to work with 6.000" connecting rods
• 0.927" x 2.500" Wrist Pin — full-floating wrist pin design for reduced friction and improved durability
• Manufactured in the USA from high-strength forged aluminum alloy
• Engineered for naturally aspirated performance applications
• CP-Carrillo's precision quality control ensures consistent weight-matching across the set

CP-Carrillo has been a trusted name in professional racing for decades, supplying forged pistons and connecting rods to top engine builders across drag racing, road racing, and circle track motorsports. The BC1023-040 delivers the strength, dimensional accuracy, and surface finish demanded by serious engine builders.