Carrillo SC7136-1 Honda B-Series Forged Dome Piston 81.5mm Single

The CP-Carrillo SC7136-1 is a single forged aluminum dome piston designed for Honda and Acura B-Series engines. Part of CP-Carrillo's renowned Honda B-Series piston lineup, the SC7136-1 is sold individually and shares the same precision-engineered specifications as the SC7136 family — ideal for custom builds requiring individual cylinder replacement or staged assembly.

Manufactured from high-strength forged aluminum, this piston features a dome profile with four valve reliefs for clearance with high-lift camshafts and larger valve sizes. With an 81.5mm (3.209 in.) bore, it is compatible with naturally aspirated and nitrous-fed B-Series applications. The wrist pin is included at no additional cost, along with piston rings and pin lock retainers.

Key Specifications:

• Bore: 81.5mm (3.209 in.)
• Stroke: 87.20mm
• Rod Length: 138.0mm
• Piston Style: Dome with four valve reliefs
• Material: Forged aluminum
• Compression Height: 1.195 in.
• Dome Height: 0.135 in.
• Piston Head Volume: -3.60cc
• Pin Diameter: 0.827 in.
• Wrist Pin Style: Press-fit or floating
• Top Ring: 1.0mm steel
• Second Ring: 1.2mm cast iron
• Oil Ring: 2.8mm
• Quantity: Sold individually (single piston)

Key Features:

• Full radius dome design for optimized combustion
• Compatible with B16A, B18A, B18B, and B18C cylinder heads
• Suitable for naturally aspirated and nitrous applications
• Deep valve relief depth accommodates high-lift camshafts and +1mm valve sizes
• Fully CNC-machined and balanced to ±1 gram
• Accumulator grooves and double pin oilers with force-fed oil ring
• Pick lock grooves for easy lock removal
• Wrist pin and pin lock rings included

CP-Carrillo pistons are engineered using sophisticated computer modeling and produced on 5-axis CNC machining centers, ensuring precise fitment and consistent performance. Each piston undergoes inspection in a climate-controlled quality department equipped with computerized measurement systems.