Carrillo BBC5321-100 Big Block Chevy Forged Piston Set Bore - 4.600

The Carrillo BBC5321-100 is a high-performance forged piston set engineered specifically for Big Block Chevy applications. These pistons feature a flat top design with a -3.4cc dish, optimized for engines running a 4.600-inch bore diameter.

Key Specifications:

• Bore Size: 4.600 inches
• Stroke: 4.750 inches
• Rod Length: 6.700 inches
• Compression Ratio: 10.7:1 (with 118cc combustion chamber)
• Dome Configuration: Flat top with -3.4cc dish
• Material: Forged aluminum alloy for maximum strength and durability

Carrillo pistons are precision-machined from aerospace-grade forgings and are designed to withstand the extreme pressures and temperatures of high-performance and racing applications. The flat top design with minimal dish volume provides an excellent balance between compression ratio and detonation resistance, making these pistons ideal for street/strip combinations and naturally aspirated big block builds.

These pistons are calculated to achieve a 10.7:1 compression ratio when paired with a 118cc cylinder head combustion chamber, 4.750-inch stroke crankshaft, and 6.700-inch connecting rods. This compression ratio is well-suited for pump gas applications while still delivering strong performance gains.