Wiseco Chevy Small Block 4.020in Bore 1.550in CH -1.70 CC Piston Set

Wiseco is well-known for making strong internal engine components, and their Professional Series pistons are a prime example of that commitment. If you're building a serious performance engine for your Chevy Small Block, these pistons are designed to handle the demands of heavy to severe duty racing. They are forged and machined right here in the USA from 2618 aluminum, which gives them improved tensile strength to withstand the high stresses of racing.

These aren't just basic pistons; they come packed with features for better performance and durability. You'll find precision ring grooves, an anti-detonation groove, and other features that improve ring seal. The crown is fully machined for accuracy, and they include forced pin oiling to keep the wrist pins lubricated. Plus, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, which is a notable benefit in high-performance builds.

This set is for an 8-cylinder engine and features a 4.020-inch bore with a 1.550-inch compression height. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are designed for builders who want to remove their limits and push their engine's capabilities.