CP Piston & Ring Set for Honda F20C - Bore (89mm) - Size (+2.0mm) - Compression Ratio (9.6)

If you're rebuilding the heart of your Honda F20C engine, especially for high-performance applications where reliability and power are key, a strong set of pistons is where you start. This forged piston and ring set from CP Pistons is built to handle the demands of a performance F20C build. It's designed to be a direct replacement for your stock pistons, but with the strength and durability that forged aluminum offers over cast or hypereutectic designs.

These pistons are forged from high-strength aluminum, a process that aligns the grain structure of the metal for significantly improved toughness and resistance to detonation or fatigue under high cylinder pressures. This particular set features an 89mm bore, which is 2.0mm larger than the stock bore size, meaning it's intended for engines that have already been bored out to accommodate this larger diameter. The compression ratio comes in at 9.6:1, a solid figure that works well for naturally aspirated builds or those running moderate boost levels, offering a good balance between power and pump gas compatibility. The included rings are essential for proper sealing, helping to maintain compression and control oil consumption.

When undertaking an engine rebuild of this caliber, it's crucial to ensure all components are properly matched and installed. This set is designed for the F20C engine, known for its performance potential in vehicles like the S2000. Remember that this part is not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and the manufacturer's installation guidelines for the best results during your rebuild.