Wiseco Chevrolet SB 23deg Turbo/Supercharger 4.165in Bore 4.00 in Dish Piston - set of 8

If you're building a high-performance Chevrolet Small Block engine for turbo or supercharger applications, this set of eight pistons from Wiseco is a solid choice. These are the Professional Series pistons, meaning they're built with a no-expense-spared approach for serious racers and builders who demand durability and performance under heavy stress. They feature a 4.165-inch bore and a 4.00-inch dish, designed to work with specific cylinder head configurations for boosted engines.

Wiseco forges and machines these pistons in the USA from 2618 aluminum, which gives them improved tensile strength for handling the extreme pressures of racing. You'll find precision ring grooves, an anti-detonation groove, and other features to improve ring seal, which is crucial for preventing blow-by and maintaining compression. They also come with an ArmorGlide skirt coating. This isn't just for looks; it helps reduce friction, makes operation quieter, and resists seizure, all important factors when you're pushing an engine hard.

These pistons are designed and built to handle heavy to severe duty performance applications. The fully machined crown ensures accuracy and consistency, and they feature forced pin oiling to keep the wrist pins properly lubricated under high loads. Keep in mind these are not CARB approved and cannot be shipped to California. For a serious build, these pistons are a well-built foundation.