Wiseco Chevy Small Block 4.020in Bore 1.250in CH -1.70 CC Piston Set

If you're building a high-performance Chevrolet Small Block engine, this set of eight forged pistons from Wiseco is designed to handle serious power. These pistons are made from 2618 aluminum, a material chosen for its improved tensile strength, which is crucial for components that experience high stress and heat. The 4.020-inch bore size and -1.70cc dish volume are specific dimensions that will be critical for achieving your target compression ratio and displacement, especially when paired with your chosen cylinder heads and crankshaft.

Wiseco engineers these pistons with a focus on durability and performance. You'll find precision ring grooves that ensure a good seal, along with anti-detonation grooves and other features designed to improve ring seal and prevent detonation. The crown of each piston is fully machined for accuracy, and they come with forced pin oiling to keep the wrist pins properly lubricated under extreme conditions. Additionally, these pistons feature an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and operate more quietly. This set is built to withstand heavy to severe duty race applications, meaning they're ready for demanding builds where reliability is paramount.

When you're putting together a serious engine, the details matter. This piston set is a well-built foundation for a powerful and reliable Chevrolet Small Block. Keep in mind 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.