Wiseco Honda K-Series +10.5cc Dome 1.181x88.0mm Piston Shelf Stock Kit

Forged from 2618 aluminum, these Wiseco pistons are built for the demands of severe duty race applications. The material choice here is key, offering improved tensile strength over other aluminum alloys to handle the high pressures and temperatures found in performance K-series engines. Each piston features a +10.5cc dome volume, designed to work with specific cylinder head configurations to achieve a desired compression ratio, and precision machined ring grooves ensure a solid seal.

Wiseco has included several features to enhance performance and durability. The anti-detonation grooves and additional ring seal features help prevent premature detonation and keep combustion gases from escaping past the rings, which is critical for maintaining power and engine health under stress. The ArmorGlide skirt coating is applied to reduce friction, resist seizure, and contribute to quieter operation, all important factors when pushing an engine hard. The fully machined crown and forced pin oiling further support longevity and consistent performance in demanding builds.

This shelf stock kit is intended for builders who need a reliable, well-built set of pistons for their Honda K20A engine. Remember that these pistons are not CARB approved and cannot be shipped to California. For a complete build, ensure you have all necessary supporting components like connecting rods, rings, and bearings, and always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.