Wiseco Chevy SB RED Series Piston Set 4125in Bore 1125in Compression Height 0927in Pin - Set of 8

Forged from 2618 aluminum, these Wiseco RED Series pistons are built for the demands of high-performance racing and power adder applications. The Race Engineered Design (RED) philosophy means each piston is precision-machined to give you a competitive edge, whether you're on the drag strip or the circle track. This set is specifically for Chevrolet Small Block engines with a 4.125-inch bore.

Wiseco incorporates several thoughtful features to ensure durability and performance. Horizontal slot oiling in the pin bores keeps the wrist pin and small end of the connecting rod properly lubricated, which is crucial for long service life under stress. The dedicated forgings allow for an engine-specific strutted design, maximizing strength while keeping weight down. You'll also find an ArmorGlide skirt coating that works to reduce friction and noise, while also minimizing wear on both the piston skirt and the cylinder wall. An accumulator groove is included to help maintain consistent ring seal and power output.

This set includes premium rings, so you won't need to source them separately. Please note that these pistons are not CARB approved and cannot be shipped to California. They are designed for performance builds and are a solid option for anyone rebuilding a Chevy SB for racing or serious street performance.