Wiseco Chevy Big Block 4.610in Bore 1.060in CH 48.70 CC Piston Set

Wiseco is well-known for making strong, reliable internal engine components, especially for high-performance applications. This Professional Series piston set is built for serious racers and builders who need parts that can handle extreme conditions. These pistons are designed for heavy to severe duty race builds, meaning they are made to withstand the intense demands of competitive racing and high-horsepower engines.

Each piston is forged and machined in the USA from 2618 aluminum, which offers improved tensile strength for better durability under stress. They feature precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal, helping to maintain compression and prevent blow-by. The pistons also come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and operate more quietly. The fully machined crown ensures accuracy and consistent performance, and the forced pin oiling system helps keep the wrist pin lubricated under high loads.

This set includes eight pistons, each with a 4.610-inch bore, a 1.060-inch compression height, and a 0.990-inch pin diameter. Please note that these pistons are not CARB approved and cannot be shipped to California. They are designed for use in Chevrolet Big Block engines.