Carrillo SC7131-1 Forged Piston Honda H22 Series 87mm Bore

The Carrillo SC7131-1 is a high-performance forged aluminum piston designed for Honda H22 series engines. This precision-engineered piston features a dome design with four valve reliefs, making it compatible with high-lift camshafts and oversized valves.

Key Specifications:

• Bore: 87mm (3.425 inches)
• Compression height: 1.220 inches
• Dome height: 0.230 inches
• Piston head volume: -10.40cc
• Wrist pin diameter: 0.866 inches (press-fit or floating)
• Forged from high-strength 2618-T61 aluminum alloy

Performance Features:

• Fully CNC-machined and balanced to +/-1 gram precision
• Engineered using sophisticated computer modeling for optimized design
• Custom skirt cam and barrel design for reduced friction
• Accumulator grooves for improved oil control
• Full radius dome design for strength and efficiency
• Deep valve reliefs accommodate high-lift camshafts
• Suitable for naturally aspirated and nitrous oxide applications

Ring Pack Included:

• 1.0mm steel top ring
• 1.2mm cast iron second ring
• 2.8mm oil ring

Each piston includes wrist pin and retainers. CP-Carrillo pistons are known for excellent ring seal, reduced blow-by, and increased horsepower and torque. This individual piston is ideal for replacement or custom engine builds requiring precise piston-to-wall clearance specifications.