Carrillo A3310312-1 Forged Piston Honda 2.4L K-Series +0.5mm Oversize 11.1:1 CR

The Carrillo (CP-Carrillo) A3310312-1 is a forged high-performance piston designed for the Honda 2.4L K-Series engine. Sold individually, this piston features a 3.445-inch (87.5mm) bore diameter at +0.5mm oversize and an 11.1:1 compression ratio, making it well-suited for performance street, road racing, and forced induction builds.

CP-Carrillo pistons are precision-engineered using sophisticated computer modeling and manufactured with 5-axis CNC machining for exceptional accuracy and balance. Each piston is constructed from high-strength forged aluminum alloy, delivering a lightweight profile that improves engine responsiveness while maintaining the structural integrity required for high-output applications.

Key Features:

• Forged high-strength aluminum alloy construction
• 3.445 in. (87.5mm) bore — +0.5mm oversize
• 11.1:1 compression ratio
• Fully CNC-machined and balanced to +/- 1 gram
• Deep valve relief depth to accommodate high-lift camshafts
• Custom skirt cam and barrel design for optimized oil control
• Accumulator grooves for improved ring seal
• Double pin oilers with force-fed oil ring
• Pick-lock grooves for easy circlip removal
• Wrist pin and pin fitting included
• Compatible with turbo, supercharger, and nitrous oxide applications
• Made in the USA at CP-Carrillo's Irvine, California facility

CP-Carrillo's climate-controlled inspection department uses computerized electronic equipment to verify dimensional integrity on every component. Each piston undergoes rigorous quality checks to ensure consistent performance across the most demanding racing and performance driving environments. MPN: A3310312-1 | Cross-reference: A3310312.