CP Piston & Ring Set for Nissan SR20DE w/ Turbo - Bore (86.5mm) - Size (+0.5mm) - Compression Ratio

CP Pistons is well-known for making strong internal engine components, and this piston and ring set is a prime example of their work for the Nissan SR20DE engine. If you're rebuilding or upgrading your turbocharged 1989-1998 Nissan 240SX, this set is built to handle the demands of boosted performance. It features a bore size of 86.5mm, which is a +0.5mm overbore from the factory specification, allowing for a fresh bore and piston fitment.

These pistons are forged, meaning they start as a solid block of aluminum that is heated and hammered into shape. This process creates a much stronger and more durable piston than cast aluminum, making them ideal for engines that see higher cylinder pressures from turbocharging. The set includes the necessary rings, which are also designed to work with the forged pistons for a proper seal. The compression ratio is specified for use with a turbocharged setup, ensuring optimal performance and reliability when you're pushing your SR20DE.

When installing this set, it's important to ensure your engine block has been properly machined to the 86.5mm bore size. This is a critical step for achieving the correct piston-to-wall clearance, which is essential for engine longevity and performance. Because these are performance parts, we recommend consulting with a professional engine builder or referring to CP Pistons' specific installation guidelines to ensure everything is torqued and gapped correctly for your application.