Wiseco RED Series Ford Small Block 4.000in Bore 1.230in CH -5.00 CC Piston Set

Wiseco is well-known for making strong, reliable engine components for racing and high-performance applications. This RED Series piston set is built for Ford Small Block engines and uses Race Engineered Design (RED) principles to give you a competitive edge. These aren't just any pistons; they're forged and machined right here in the USA from 2618 aluminum, a material chosen for the serious tensile strength needed when you're pushing an engine hard, especially with power adders like turbos or superchargers.

What sets these pistons apart is the attention to detail. You'll find horizontal slot oiling in the pin bores, which is crucial for keeping the wrist pin and the small end of the connecting rod properly lubricated, leading to a longer service life. The dedicated forgings mean each piston is shaped specifically for its intended engine, using a strutted design to get the best strength-to-weight ratio possible. Plus, they come with an ArmorGlide skirt coating that works to reduce friction and noise while also cutting down on wear to the piston skirt and cylinder wall. Each set includes premium rings, so you won't need to hunt for those separately, and an accumulator groove is included to help maintain consistent ring seal and power delivery.

This set is designed for a 4.000-inch bore with a 1.230-inch compression height and a -5.00cc volume dish. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are also subject to Prop 65 warnings.