.

Stainless Exhaust Steel Valves 1.880 in. Diameter .341 in. Stem 5.422 in. Length, Chevy, Ford, Set of 8

This Manley extreme duty series performance valve set is a great choice for supercharged, alcohol-burning, or marine use. These engines generate a lot of heat and require special valves that can handle that kind of punishment. The valves are made from the best stainless steel available, with chrome stems and hardened valve tips. The extreme duty series valves are swirl-polished and fully machined, and come with straight stems.