Wiseco Chevy Big Block 4.310in Bore 1.270in CH 9.50 CC Piston Set

If you're building a high-performance Chevrolet Big Block engine for serious racing or severe duty applications, a strong set of pistons is crucial. This Wiseco Professional Series piston set is designed to handle the extreme demands of these builds. Each piston is forged from 2618 aluminum, a material chosen for its improved tensile strength, which is essential for maintaining integrity under high stress and heat.

Wiseco machines these pistons right here in the USA, paying close attention to details like precision ring grooves, anti-detonation grooves, and other features that improve ring seal. This means better combustion control and more power getting to the crankshaft. They also come with an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and contribute to quieter operation. The fully machined crown and forced pin oiling further demonstrate the thought put into making these pistons reliable for heavy use.

This set includes eight pistons, each with a 4.310-inch bore, a 1.270-inch compression height, and a 0.990-inch pin diameter. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are built for the most demanding engine builds where durability and performance are paramount.