Wiseco Chevy Small Block 4.060in Bore 1.125in CH -1.70 CC Piston Set

If you're building a high-performance Chevrolet Small Block engine, this Wiseco piston set is designed to handle some serious punishment. These aren't your average pistons; they're part of Wiseco's Professional Series, meaning they're built with no compromises for racers and builders who push their engines hard. They're made to withstand heavy to severe duty race applications, so you can be confident they'll hold up when you're demanding maximum output.

Each piston is forged and machined right here in the USA from 2618 aluminum, which gives them improved tensile strength for durability under extreme pressure. You'll find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal, which is critical for performance and longevity. They also come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and keep things running quieter. The fully machined crown ensures accuracy, and forced pin oiling helps keep the wrist pins lubricated.

This set includes eight pistons, each with a 4.060-inch bore, a 1.125-inch compression height, and a 0.927-inch pin diameter. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are designed for demanding performance builds where reliability and strength are paramount.