Wiseco Pistons K578M865AP Professional Series Forged Piston Kit for Nissan RB25DET

These no-expense-spared pistons are designed for serious racers and builders, packed with custom-level performance and durability features and premium rings for heavy to severe duty race builds.

Key Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• ArmorGlide skirt coating provides seizure resistance, friction reduction, and quieter operation
• Fully machined crown features with dome design and four valve reliefs
• 14.00cc dome volume with precision ring grooves
• Complete ring set included: 1.0mm top compression ring, 1.2mm second compression ring, and 2.8mm oil ring
• Floating wrist pins made from 5115 material included

The crown thickness and ring lands are specifically designed for power-adders like turbos, blowers, and nitrous oxide. Wiseco's advanced forging process and extensive heat-treating and finishing processes ensure maximum performance and reliability. This kit provides the strength and precision tolerances demanded by high-performance sport compact builds.