CP Piston & Ring Set for Honda K20A/A2 - Bore 89mm - Compression Ratio 14.5.1

Forged from 2618 aluminum alloy, these CP Pistons are built for high-performance Honda K20A and K20A2 engines. The 89mm bore size is a common upgrade for these popular four-cylinder powerplants, and the 14.5:1 compression ratio is designed to maximize power output when paired with appropriate tuning and fuel. This set includes the pistons and rings needed to rebuild or upgrade your engine's top end.

CP Pistons uses a deep-dish dish design for these pistons, which is crucial for achieving that high 14.5:1 compression ratio while maintaining proper valve clearance. The 2618 aluminum alloy offers a good balance of strength and weight, making it a solid choice for demanding builds. Each piston is also designed with a skirt coating to help reduce friction and wear within the cylinder bore, contributing to a longer lifespan for your engine rebuild. The included rings are specifically matched to the piston and bore size for a proper seal.

When installing these pistons, ensure your engine block is properly machined to the 89mm bore size and that your connecting rods are in good condition. Proper balancing of the rotating assembly is also recommended for high-performance applications like this. Remember that this piston set is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for detailed guidance.