CP-Carrillo SC70451-4 Honda K-Series 87.5mm 9.0:1 Forged Piston Kit

Built to an 87.5mm bore diameter and a 9.0:1 compression ratio, these pistons deliver a precision-engineered foundation for high-performance and motorsport engine builds.

Key Features:

• 87.5mm bore diameter for K24 block applications
• 9.0:1 compression ratio optimized for K24 block with K20 cylinder head
• High-strength forged aluminum construction for superior durability under extreme loads
• Dual pin oilers for double oil delivery to the wrist pin, extending service life
• Radiused valve reliefs for compatibility with high-lift camshafts and performance valve sizes
• Accumulator groove reduces ring flutter and improves combustion seal for maximum power output
• Fully CNC-machined and balanced to +/-1 gram for smooth, high-RPM operation
• Pin fitting final hone on the wrist pin bore included as standard
• High-performance rings included
• Wrist pins included at no additional cost

CP-Carrillo pistons are designed and manufactured in the USA using proprietary tooling, dedicated cutters, and state-of-the-art 5-axis machining, making them a trusted choice for competitive motorsports and serious street performance builds alike. Part Number: SC70451-4.