Wiseco RED Series Chevy Small Block 400 4.125in Bore 1.425in CH -21.00 CC Piston Set

Wiseco is well-known for making strong, reliable internal engine components for performance applications. This RED Series piston set is built for Chevy Small Block 400 engines and uses Race Engineered Design (RED) principles to give you a real edge on the track or at the drag strip. These aren't just any pistons; they're crafted to handle the demands of serious racing and power adder setups.

Each piston in this set is forged and machined right here in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial when you're pushing an engine hard. To ensure optimal lubrication and longevity, they feature horizontal slot oiling in the pin bores, keeping the wrist pin and small end of the connecting rod well-fed with oil. The dedicated forgings allow for an engine-specific strutted design, meaning Wiseco has optimized the strength-to-weight ratio for maximum performance. Plus, the ArmorGlide skirt coating is applied to cut down on friction and noise, while also reducing wear on the piston skirt and cylinder wall. You'll also find an accumulator groove, which helps maintain a consistent ring seal for reliable power delivery.

This set includes premium rings, so you won't need to hunt for those separately. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are designed for high-performance applications where durability and precision are paramount.