Wiseco Chevrolet LS RED- LS 4.000in Stroke Flat Tops 4.065in Bore - Set of 8

What you get in this kit are eight forged pistons designed specifically for Chevrolet LS engines. These aren't just any pistons; they're part of Wiseco's RED (Race Engineered Design) series, built to handle the demands of high-performance racing and engines with power adders. They're made from 2618 aluminum, a well-known material for its strength in these kinds of applications.

Wiseco machines these pistons in the USA, and they've included some smart features to help them perform and last. You'll find horizontal slot oiling in the pin bores, which is crucial for keeping the wrist pins and connecting rod small ends properly lubricated, especially under high stress. The pistons themselves use dedicated forgings with a strutted design, meaning they're shaped to give you the best strength for their weight. Plus, they come with an ArmorGlide skirt coating that helps cut down on friction and noise, while also reducing wear on the piston skirts and cylinder walls. An accumulator groove is also part of the design, helping to keep the piston rings sealing consistently for reliable power delivery.

This set includes premium rings, so you won't need to source those separately. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For serious LS engine builds, these pistons offer a solid foundation with features aimed at durability and performance.