CP Piston & Ring Set for Honda F22C - Bore (87mm) - Size (STD) - Compression Ratio (12.5)

If you're rebuilding the engine in your 2004-2009 Honda S2000, especially if you're looking to increase performance, a set of high-strength forged pistons like these from CP Pistons is a critical component. These pistons are designed for the F22C engine, featuring a standard 87mm bore and a 12.5:1 compression ratio, which is a notable bump over stock. This higher compression ratio helps to extract more power from the fuel-air mixture, making your S2000 feel more responsive and potent.

CP Pistons are well-known in the performance engine building world for their robust construction. These are forged pistons, meaning they start as a solid block of aluminum alloy that's heated and hammered into shape under immense pressure. This process creates a much stronger and more durable piston than cast pistons, which are poured into a mold. This strength is essential for handling the increased cylinder pressures and temperatures that come with a higher compression ratio, or if you plan on adding forced induction down the road. The set includes the pistons and the necessary rings, all sized to the standard 87mm bore for a precise fit in your F22C block.

When installing these pistons, it's important to ensure your engine block is properly machined and honed to the correct specifications for the 87mm bore. Cleanliness during assembly is also paramount, as any debris can compromise the seal and performance of these precision components. While these pistons offer a significant performance advantage, please note they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for the best results.