Wiseco Acura 4v Domed +8cc STRUTTED 89.0MM Piston Kit

Wiseco is well-known for its high-performance forged pistons, and the K573M89AP piston kit is a prime example of their commitment to serious racers and builders. This set is designed for demanding applications where durability and performance are critical, like in Honda K20A engines. These pistons are built to handle heavy to severe duty race builds, helping you push your engine's limits.

Each piston in this kit is forged and machined in the USA from 2618 aluminum, which offers improved tensile strength for robust performance. They feature precision ring grooves, an anti-detonation groove, and other features designed to enhance ring seal. The crown is fully machined for accuracy, and they incorporate forced pin oiling to ensure proper lubrication. Additionally, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, contributing to overall engine health under stress.

This kit includes four pistons, each with an 89.00 mm bore and a domed top with a +8cc volume. The compression height is 30.00 mm, and they use a 0.866-inch pin diameter. Please note that these pistons are not CARB approved and cannot be shipped to California. They are intended for sport compact applications and are a solid option for those rebuilding their top end for high-performance use.