CP-Carrillo SC7120-1 Honda B-Series Forged Dish Piston with Rings 84mm Bore

The CP-Carrillo SC7120-1 is a single forged aluminum piston with rings designed for Honda and Acura B-Series engines. Machined to an 84.00mm (3.307 in.) bore at standard size with a dish-style crown and four valve reliefs, this piston delivers the precision and durability demanded by high-performance and forced-induction builds.

Manufactured from high-strength forged aluminum alloy using 5-axis CNC machining, each piston is balanced to within ±1 gram for exceptional rotating assembly consistency. The dish crown carries a +5.80cc head volume and a compression height of 1.181 in. (30mm). A custom skirt cam and barrel profile, accumulator grooves, and double pin oilers with a force-fed oil ring round out the design for reliable oil management under demanding conditions.

Key Features:

• Forged aluminum construction — high-strength, lightweight, and race-proven
• 84.00mm (3.307 in.) bore diameter at standard size
• Dish crown with four valve reliefs — compatible with oversize valves and high-lift camshafts
• +5.80cc piston head volume; 1.181 in. compression height
• Fully CNC-machined and balanced to ±1 gram
• Custom cam and barrel skirt design for optimum wall contact
• Accumulator groove for improved ring seal
• Double pin oilers with force-fed oil ring
• 0.827 in. wrist pin diameter; wrist pin and retainers included
• Pick-lock grooves for easy lock removal
• High-performance ring set included
• Compatible with turbo, supercharger, nitrous, and naturally aspirated applications
• Works with B16A, B18A, B18B, and B18C cylinder heads
• Sold individually (single piston)

CP-Carrillo pistons are engineered and manufactured at their Southern California facility using proprietary tooling and dedicated 5-axis machining. Each unit undergoes a multi-level quality inspection to ensure it meets the highest standards in performance engine building.