CP Piston & Ring Acura/Honda K20A 9.25:1 CR / K24A 10.5:1 CR Heavy Duty - Bore (87.5mm) - Size (STD)

If you're rebuilding the engine in your Acura or Honda with a K20A or K24A engine, especially if you're looking to handle more power or are doing a performance build, a strong set of pistons is fundamental. These heavy-duty pistons from CP Pistons are forged from high-strength aluminum, a material chosen for its excellent strength-to-weight ratio, making them ideal for demanding engine applications where stock cast pistons might not hold up.

This set is designed with specific compression ratios in mind: 9.25:1 for K20A engines and 10.5:1 for K24A engines. These ratios are carefully chosen to balance power output with reliable operation on pump gas for most street-driven performance applications. The bore size is a standard 87.5mm, meaning these are a direct replacement for stock bore engines or engines already bored to this size, simplifying installation. CP Pistons are well-known in the performance community for their robust construction and attention to detail, ensuring each piston is built to withstand the rigors of higher cylinder pressures and temperatures.

When undertaking an engine rebuild of this caliber, it's crucial to ensure all components are compatible and installed correctly. These pistons are sold as a set, and it's important to note that they are not CARB approved, so they cannot be shipped to California. Always refer to the manufacturer's detailed installation instructions for proper ring gap, piston-to-wall clearance, and assembly procedures to ensure the longevity and performance of your engine build.