CP-Carrillo SC71471XA-1 Forged Piston Honda K-Series 87.5mm Bore 12.5:1 Single

The CP-Carrillo SC71471XA-1 is a single forged aluminum piston engineered for Acura/Honda K24 engines running a K20A or K20A2 cylinder head. Designed as part of the renowned Sport Compact shelf piston line, this piston delivers race-proven performance and durability in a ready-to-ship form factor.

Key Specifications:

• Bore: 3.445 in (87.5mm)
• Stroke: 99mm
• Rod Length: 152mm
• Compression Height: 1.181 in
• Dome Volume: 4.6cc dome with four valve reliefs
• Compression Ratio: 12.5:1
• Advertised Weight: 316g
• Material: Forged aluminum (X-style forging)
• Sold as: Single piston (no rings included)

Key Features:

• Full-radius dome design with deep valve reliefs for high-lift camshaft compatibility
• X-designated forging for additional strength, durability, and weight reduction
• Custom skirt cam and barrel design for optimized ring seal
• Accumulator grooves for improved oil control
• Double pin oilers with force-fed oil ring support
• Pick lock grooves for easy circlip removal
• Fully CNC-machined and balanced to ±1 gram
• Compatible with turbo, nitrous oxide, and supercharged engine builds
• Made in the USA from high-strength aluminum forgings

CP-Carrillo manufactures each piston using sophisticated computer modeling and 5-axis CNC machining to ensure precise fitment and repeatable quality. The SC71471XA-1 is the individual single-piston option from the SC71471XA set — ideal for replacing a single piston during a rebuild or refreshing one cylinder. Wrist pin included.