Wiseco Chevy Small Block 4.140in Bore 1.120in CH 13.50 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for serious performance in Chevy Small Block engines. The 4.140-inch bore size and 1.120-inch compression height are key dimensions for achieving specific displacement and compression ratios in your build. Wiseco machines these pistons in the USA, ensuring precise tolerances for critical components like the ring grooves, which feature additional sealing improvements and anti-detonation designs to handle the demands of racing.

Beyond the core forging and machining, these pistons come with an ArmorGlide skirt coating. This isn't just for looks; it helps reduce friction and resist seizure, which is crucial when an engine is under heavy load and generating significant heat. The crown is also fully machined, and the design includes forced pin oiling to ensure the wrist pin receives adequate lubrication, further contributing to durability in severe duty applications. This set includes eight pistons, ready for your next engine build.

Because these pistons are designed for high-performance racing applications and are not CARB approved, they cannot be shipped to California. If you're building a race engine or a severe duty performance street engine, these Wiseco pistons offer a well-built foundation.