Carrillo SC7122-1 Forged Piston Honda B-Series CR Pistons - 85mm 1.0mm 12.5 1

The Carrillo SC7122-1 is a high-performance forged aluminum piston designed for Honda B-Series engines. This single piston features an 85mm bore (+1.0mm oversize) with a 12.5:1 compression ratio, making it ideal for naturally aspirated racing applications demanding maximum power output.

Key Specifications:

• Bore: 3.346 inches (85.0mm, +1.0mm oversize)
• Compression Ratio: 12.5:1
• Compression Height: 1.181 inches
• Piston Head Volume: +4.70cc
• Piston Style: Dished crown with four valve reliefs
• Wrist Pin Diameter: 0.827 inches
• Stroke: 89.0mm
• Rod Length: 138.0mm

Features:

• High-strength forged aluminum construction for maximum durability
• Fully CNC-machined and balanced to +/-1 gram for precision performance
• Deep valve reliefs accommodate high-lift camshafts and +1mm oversized valves
• Custom skirt cam and barrel design for optimal piston-to-wall clearance
• Accumulator grooves for enhanced oil control
• High-performance piston rings included
• Wrist pin and retainers included
• Press-fit or floating wrist pin style compatible

Compatible with B16A, B18A, B18B, and B18C cylinder heads. Suitable for turbo, supercharger, nitrous, and naturally aspirated applications. Engineered using sophisticated computer modeling and manufactured with 5-axis machining technology. Sold individually—order four pistons for a complete 4-cylinder engine build.