Wiseco GM ECOTEC Dished 8.9:1 CR 86.0 Piston Shelf Stock Kit

This is a set of four Wiseco forged pistons designed for GM 2.2L Ecotec engines. These pistons feature a dished crown, creating an 8.9:1 compression ratio, making them suitable for builds where controlled compression is key. They are built from 2618 aluminum, a well-known material for its strength in high-performance applications, and are forged and machined right here in the USA.

Wiseco has packed these pistons with features to handle serious use. You'll find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal, which is crucial for both power and longevity. The crown is fully machined for accuracy, and the pistons include forced pin oiling to ensure the wrist pins stay well-lubricated. Additionally, they come with an ArmorGlide skirt coating. This coating helps reduce friction, resist seizure, and contribute to quieter operation, especially important when you're pushing the engine hard.

This piston set is designed to withstand heavy to severe duty performance applications. They are a popular choice for builders working on sport compact applications that demand reliability and durability. While these pistons are designed for performance, it's important to note they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.