Wiseco Mitsubishi Turbo Forged Dish -17cc 86.25mm Bore 1.378in CD Piston Shelf Stock Kit

If you're building a high-performance Mitsubishi 4G63 engine for serious racing, Wiseco's Professional Series forged pistons are a solid choice. These aren't your everyday replacement parts; they're crafted for the demands of heavy to severe duty race applications where durability and performance are critical. Each piston is forged and machined right here in the USA from 2618 aluminum, a material chosen for its improved tensile strength under extreme conditions.

Wiseco has packed these pistons with features to handle the stress of racing. You'll find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal, which is crucial for maintaining compression and preventing blow-by. The crown is fully machined for accuracy, and they include forced pin oiling to ensure the wrist pin stays well-lubricated. Plus, the ArmorGlide skirt coating helps reduce friction and noise while resisting seizure, keeping your engine running smoothly under load.

This kit includes four pistons, each with an 86.25mm bore and a -17cc dish volume, designed to work with specific compression heights and pin diameters for optimal engine assembly. Keep in mind these pistons are not CARB approved and cannot be shipped to California. For builders aiming to push their 4G63 engines to the limit, these Wiseco pistons offer the robust construction and advanced features needed for competitive performance.