Carrillo BC1031-030 Small Block Chevy Forged Pistons Bore - 4.030

The Carrillo BC1031-030 is a set of high-performance forged pistons engineered specifically for Small Block Chevy engines. These precision-machined pistons feature a dish design with -16.2cc volume, optimized for use with 23-degree cylinder heads and a 64cc combustion chamber to achieve a 9.5:1 compression ratio.

Key Specifications:

• Bore diameter: 4.030 inches
• Stroke: 3.750 inches
• Connecting rod length: 6.000 inches
• Dish volume: -16.2cc
• Compression ratio: 9.5:1 (with 64cc head)
• Compatible with all 23-degree cylinder heads

Carrillo pistons are renowned in the racing and performance industry for their exceptional strength-to-weight ratio and durability. These forged pistons are manufactured from high-quality aluminum alloy using advanced forging processes, providing superior strength over cast pistons while maintaining optimal weight characteristics for high-RPM applications. The dish design helps optimize flame travel and combustion efficiency while achieving the desired compression ratio for naturally aspirated or mild performance builds.

Ideal for street performance, bracket racing, and engine rebuilds where reliability and precise engine specifications are critical.