Carrillo SC7122-4 CP Pistons Honda B-Series Forged Dish Piston

Designed to perform across a wide range of engine builds — including turbocharged, supercharged, nitrous, and naturally aspirated applications — these pistons deliver the precision, strength, and consistency that serious engine builders demand.

Each piston is fully CNC-machined and balanced to within +/-1 gram, and features a 3.346 in. (85.00mm) bore with a +4.70cc dish head volume and four valve reliefs to accommodate high-lift camshafts and +1mm valve sizes. The custom skirt cam and barrel design, combined with accumulator grooves and double pin oilers, ensures optimal ring seal and oil control under sustained high-RPM use.

Key Features:

• Bore: 3.346 in. / 85.00mm
• Stroke: 89.00mm
• Rod Length: 138.00mm
• Compression Height: 1.181 in.
• Head Volume: +4.70cc (dish, four valve reliefs)
• Pin Diameter: 0.827 in. — wrist pins included
• Wrist pin retainers included
• Balanced to +/-1 gram per piston
• Custom skirt cam and barrel design
• Accumulator grooves for improved ring seal
• Double pin oilers with force-fed oil ring
• Pick lock grooves for easy lock removal
• High-performance rings included
• Compatible with B16A, B18A, B18B, and B18C heads
• Suitable for turbo, supercharger, nitrous, and naturally aspirated builds
• Made in the USA

CP-Carrillo pistons are manufactured in a climate-controlled facility using proprietary tooling and 5-axis machining for consistently tight tolerances. The SC7122-4 is a custom-order part — please confirm bore size and compression requirements prior to ordering.