CP Piston & Ring Set for Nissan CA18DET - Bore (83.5mm) - Size (+0.5mm) - CR (9.0) - Set of 4

This is a set of four forged pistons and matching rings from CP Pistons, specifically sized for the Nissan CA18DET engine. You'll receive four pistons, each measuring 83.5mm in bore diameter and at a +0.5mm oversize, along with the necessary ring sets for each piston. These are designed to achieve a 9.0:1 compression ratio, making them a solid choice for rebuilding or upgrading your CA18DET's bottom end.

CP Pistons are well-known for their robust construction, and these forged units are built to handle the stresses of performance applications. Forging the aluminum alloy creates a stronger, more durable piston than cast alternatives, which is crucial when you're pushing an engine beyond its stock limits. The 83.5mm bore size is a +0.5mm overbore from the factory specification, typically used when an engine block needs to be machined to clean up cylinder walls or to achieve a specific displacement. The 9.0:1 compression ratio offers a good balance, providing improved power over stock while still being suitable for use with forced induction setups without excessive cylinder pressures.

When installing these pistons, ensure your engine block has been properly machined to the specified 83.5mm bore size and that the cylinder walls are smooth and clean. Proper balancing of the rotating assembly is also recommended for optimal performance and longevity. This set is intended for engine builders looking for reliable, high-performance internal components for their CA18DET build.