Wiseco Chevy SB RED Series Piston Set 4040in Bore 1425in Compression Height 0927in Pin - Set of 8

If you're building a high-performance Chevrolet Small Block engine for racing, the Wiseco RED Series pistons are designed to give you a competitive edge. These pistons are forged from 2618 aluminum, a material chosen for its high tensile strength, which is essential for the demanding conditions of racing and applications with power adders like turbochargers or superchargers. They are specifically engineered and machined in the USA to meet the rigorous needs of performance engines.

Wiseco's Race Engineered Design (RED) philosophy means these pistons aren't just strong; they're smart. They feature dedicated forgings that allow for an optimized, engine-specific strutted design, maximizing strength while keeping weight down. You'll also find horizontal slot oiling in the pin bores, which ensures the wrist pin and small-end of the connecting rod stay properly lubricated, a critical factor for long service life under high stress. The ArmorGlide skirt coating is another notable feature, working to reduce friction and noise while also minimizing wear on both the piston skirt and the cylinder wall. Each set comes complete with premium rings, so you won't need to source those separately, and an accumulator groove is included to help maintain consistent ring seal and power delivery.

These pistons are a cornerstone for performance builds in various racing disciplines, from drag strips to circle tracks. Please note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.