Carrillo BF6010-040 Small Block Ford Forged Piston Set Bore - 4.040

The Carrillo BF6010-040 is a precision-engineered forged piston set designed specifically for Small Block Ford engines with 20-degree TFS (Twisted Wedge) cylinder heads. These high-performance pistons feature a flat top design with an 8.7cc valve relief, optimized for maximum compression and power output in racing and high-performance street applications.

Key Specifications:

• Bore Size: 4.040 inches
• Stroke: 3.400 inches
• Connecting Rod Length: 5.400 inches
• Compression Height: Engineered for 9.9:1 compression ratio with 60cc chamber heads
• Valve Relief: -8.7cc flat top design
• Head Compatibility: 20-degree TFS Twisted Wedge cylinder heads
• Material: Premium forged aluminum alloy construction

Carrillo pistons are renowned in the motorsports industry for their exceptional strength-to-weight ratio and precision machining. The flat top design with minimal valve reliefs maximizes compression while maintaining proper valve-to-piston clearance. The -8.7cc dish ensures compatibility with aftermarket cylinder heads while achieving optimal combustion chamber efficiency. Each piston is CNC-machined to exacting tolerances and includes provisions for modern piston ring packages, making them suitable for naturally aspirated and forced induction applications.

This piston set is ideal for engine builders seeking maximum performance and reliability in Small Block Ford builds, particularly those using TFS 20-degree heads in competition or high-performance street engines.