Wiseco RED Series Chevy Small Block 400 4.165in Bore 1.125in CH -21.00 CC Piston Set

If you're building a high-performance Chevy Small Block 400 for serious racing, you need pistons that can handle the stress. Wiseco's RED Series pistons are designed specifically for these demanding applications, offering the strength and precision machining needed to get the most out of your engine. These aren't your average replacement pistons; they're built from the ground up for power and durability.

Crafted in the USA from 2618 aluminum, these pistons are forged for exceptional tensile strength, making them well-suited for racing and engines with power adders. Wiseco incorporates Race Engineered Design (RED) principles, using dedicated forgings that allow for an optimized, engine-specific strutted design. This approach maximizes strength while keeping weight down. The horizontal slot oiling in the pin bores ensures the wrist pin and small end of the connecting rod stay properly lubricated, which is crucial for long service life under high loads. Additionally, the ArmorGlide skirt coating helps reduce friction and noise, while also minimizing wear on the piston skirt and cylinder wall. Each set comes complete with premium rings, so you won't need to source those separately.

This set includes an accumulator groove, which helps maintain consistent ring seal and consistent power delivery. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a robust, USA-made piston set built for the rigors of performance racing, Wiseco's RED Series is a solid choice.