Wiseco BBC BIG CHF 3815 HEAD +15.6cc (6421B100) Piston Shelf Stock Kit

If you're rebuilding the top end of a Chevrolet Big Block engine for serious racing or severe duty applications, a solid set of forged pistons is crucial. This Wiseco Professional Series piston kit is built to handle the extreme demands of high-performance builds. Each piston is forged and machined in the USA from 2618 aluminum, a material chosen for its improved tensile strength under high stress and temperature conditions.

These pistons feature a fully machined crown with a +15.6cc dish volume, designed to work with specific cylinder head configurations. You'll also find precision ring grooves, anti-detonation grooves, and additional features to improve ring seal, which is vital for maintaining compression and preventing blow-by. For added durability and reduced friction, the piston skirts are treated with an ArmorGlide coating, helping to resist seizure and operate more quietly. The forced pin oiling design ensures the wrist pin receives adequate lubrication, further enhancing longevity in demanding race conditions.

This kit includes a complete set of eight pistons, ready for installation. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.