CP Piston & Rings Acura B18A/B1 - Bore (81.5mm) - Size (+0.5mm) - CR (9.0) -ONE PISTON/SET OF RINGS

This CP Pistons forged piston is built to an 81.5mm bore size, which is 0.5mm over the standard dimension for Acura B18A and B1 engines. It features a 9.0:1 compression ratio, making it a solid choice for rebuilding or upgrading your engine's top end. Forged pistons like these are known for their strength and ability to handle higher cylinder pressures compared to cast pistons.

The forged construction means this piston starts as a solid block of aluminum that is heated and then pressed into shape under extreme pressure. This process aligns the metal's grain structure, resulting in a much stronger and more durable component that resists deformation under high heat and stress. This specific piston is designed as a direct replacement for a single cylinder, so you'll need to purchase the correct quantity for your B18 engine.

When rebuilding your B18, ensure you have all the necessary components for a complete engine overhaul. This piston is a key part of that process, offering improved durability for performance applications.