Wiseco Nissan KA24 Dished 10.6:1 CR 89.5mm Piston Kit

When you're rebuilding the engine in your 1995-1998 Nissan 240SX for serious performance, this Wiseco forged piston kit is what you'll want. This set includes four pistons, precision-machined to a dished design that achieves a 10.6:1 compression ratio, perfect for naturally aspirated or boosted applications where you need a bit more squeeze than stock.

Wiseco builds these Professional Series pistons from 2618 aluminum, a material chosen for its improved tensile strength, making them well-suited for heavy-duty racing and severe duty builds. They come with features like precision ring grooves, anti-detonation grooves, and enhanced ring seal designs to ensure everything works together reliably under high stress. You'll also find an ArmorGlide skirt coating applied, which helps reduce friction, resist seizure, and operate more quietly. The fully machined crown and forced pin oiling are just more details that show these pistons are made for demanding use.

This kit is designed as a direct fit for your KA24DE engine. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.