Manley Performance Valves

Manley Race Series performance valves are a great choice for your bracket, oval-track, or high-performance street engine. All valves are made from stainless steel (intakes are NK-842; exhausts, XH-426), with chrome stems and hardened valve tips. In addition to being made from high-quality materials, Race Series valves are swirl polished and fully machined.

Manley Street Flo valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts, XH-424), with chrome stems and hardened valve tips. Street Flo series valves are fully machined and swirl polished; and both the materials used and the heat treating process are superior to that of the budget replacement series valves. They're available with either straight stems or undercut "Pro Flo" stems for increased flow.