Wiseco RED Series Chevy LS 4.185in Bore 1.294in CH -15.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco RED Series pistons are built for the demands of high-performance Chevy LS engines. The Race Engineered Design (RED) process focuses on creating pistons that offer both the strength needed for racing and precision features for a competitive edge. Whether you're building for drag racing or circle track, these pistons are a solid foundation for your performance V8.

Wiseco machines these pistons in the USA, with features like horizontal slot oiling in the pin bores to ensure the wrist pin and small end of the connecting rod stay well-lubricated, which is crucial for long service life under stress. The dedicated forgings allow for an engine-specific strutted design, balancing strength with a manageable weight. Each set comes complete with premium rings, so you won't need to source those separately. An accumulator groove is also included to help maintain consistent ring seal and power delivery.

This set is designed for a 4.185-inch bore and features a 1.294-inch compression height, with a 0.927-inch pin diameter. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are a significant upgrade for any performance LS build.