Wiseco BBC BIG CHF 3815 HEAD +15.6cc (6420B100) Piston Shelf Stock Kit

Forged from 2618 aluminum, these Wiseco pistons are built for serious racers and builders who demand improved tensile strength for heavy to severe duty race applications. The 4.600 inch bore size and 1.120 inch compression height are specific to certain Chevrolet Big Block configurations, and the +15.6cc combustion chamber volume is a notable design choice for tuning your engine’s compression ratio.

Wiseco doesn't cut corners with their Professional Series. You'll find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. The pistons also come with an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and contribute to quieter operation. The fully machined crown ensures accuracy, and forced pin oiling is included to keep the wrist pins lubricated under extreme conditions. This set includes eight pistons, ready for your next build.

Because these pistons are designed for high-performance racing, they are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.