Wiseco Chevrolet LS RED- LS 4.000in Stroke Flat Tops 4.005in Bore - Set of 8

When you're building a serious performance Chevrolet LS engine, you need parts that can handle the stress. This set of eight Wiseco RED Series pistons is designed for that purpose. They're built with a flat-top design, a 4.005-inch bore, and are intended for a 4.000-inch stroke, making them a solid choice for many LS engine builds, from drag racing to circle track applications.

Wiseco makes these pistons from 2618 aluminum, a material chosen for its strength, which is crucial when you're adding power adders or pushing your engine hard. They feature horizontal slot oiling in the wrist pin bores to keep things well-lubricated, which is key for long service life. The dedicated forgings allow for a strutted design that balances strength with a manageable weight. Plus, each set comes complete with premium rings, so you won't have to hunt for those separately. An accumulator groove is also included to help maintain consistent ring seal and power output.

These pistons also feature an ArmorGlide skirt coating. This isn't just for looks; it helps reduce friction and noise from the piston skirt against the cylinder wall, which also contributes to less wear over time. It's worth noting that these pistons are not CARB approved and cannot be shipped to California.