Wiseco RED Series Chevy Small Block 400 4.135in Bore 1.062in CH -24.00 CC Piston Set

If you're rebuilding the heart of your Chevy Small Block 400 for serious performance, like drag racing or circle track, you need pistons that can handle the stress. Wiseco's RED Series pistons are built for just that, using Race Engineered Design principles to give you a strong, durable foundation for your engine build. These aren't your average replacement pistons; they're crafted for power adder applications and demanding racing environments.

Machined in the USA from 2618 aluminum, these pistons offer the tensile strength needed for high-RPM operation and boosted engines. Wiseco includes a few smart details to ensure longevity and performance. Horizontal slot oiling in the pin bores keeps the wrist pins and small-end connecting rods properly lubricated, which is crucial for preventing wear under heavy load. The dedicated forgings allow for an optimized, engine-specific strutted design that maximizes strength while keeping weight down. Plus, the ArmorGlide skirt coating helps reduce friction and noise, contributing to less wear on both the piston skirts and cylinder walls. Each set comes complete with premium rings, so you won't have to hunt for those separately.

An accumulator groove is also incorporated to help maintain consistent ring seal and consistent power delivery, especially important when you're pushing your engine to its limits. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. If you're aiming for maximum performance and reliability in your Small Block 400 build, this set is a solid choice.