Wiseco BBC BIG CHF 3815 HEAD +15.6cc (6422B125) Piston Shelf Stock Kit

If you're building a serious performance engine for your Chevrolet Big Block, these Wiseco Professional Series forged pistons are a solid choice. Designed for heavy to severe duty race applications, they're built to handle the demands of high-horsepower builds. Each piston features a +15.6cc dish volume and a 4.625 inch bore, with a 1.270 inch compression height and a 0.99 inch pin diameter.

Wiseco crafts these pistons from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial for pistons that endure extreme conditions. They come with precision ring grooves, anti-detonation grooves, and features designed for additional ring seal, helping to ensure consistent performance under pressure. The fully machined crown and forced pin oiling are also notable details that contribute to their durability and reliability in demanding race scenarios. Plus, the ArmorGlide skirt coating helps reduce friction and resist seizure, while also contributing to quieter operation.

This kit includes a set of 8 pistons, along with premium rings. 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.