Wiseco Chevy Small Block 4.030in Bore 1.550in CH -1.70 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built with improved tensile strength, making them a solid choice for serious racers and builders tackling heavy to severe duty performance applications. The 4.030-inch bore size is a common specification for many Chevrolet small block engine builds, and the 1.550-inch compression height is designed to work with a variety of crankshafts and connecting rods to achieve your desired deck height.

Wiseco machines these pistons in the USA, paying close attention to details like precision ring grooves, anti-detonation grooves, and additional features for improved ring seal. The fully machined crown ensures accuracy, and the forced pin oiling helps keep the piston pin lubricated under extreme conditions. You'll also find an ArmorGlide skirt coating, which helps reduce friction for quieter operation and resistance to seizure, a critical factor when pushing an engine hard.

This set includes eight pistons, ready for your next engine build. Please note that these pistons are not CARB approved and cannot be shipped to California.