Manley Performance Race Flo Stainless Steel Valves with Chrome Stems and Hard...

Manley Performance Race Flo Stainless Steel Valves — Chrome Stems & Hard Tips Upgrade engine reliability and power with Manley Performance Race Flo stainless steel valves. Built for racing and high-performance applications, these valves combine durable materials, precision machining, and proven designs to maximize flow, resist wear, and withstand extreme conditions. Premium stainless steel construction for exceptional strength and corrosion resistance — available for both intake (NK-842) and exhaust (XH-426) applications. Chrome stems & hard tips deliver increased longevity and superior wear resistance under high RPM and high temperature operation. Swirl-polished underhead areas reduce turbulence and promote consistent airflow into the combustion chamber. Fully machined combustion faces ensure precision sealing and optimized combustion efficiency for improved power and responsiveness. Available shapes: Race Master (straight stem) and Race Flo — select the geometry that best matches your racing engine’s valve train and flow requirements. Recommended for alcohol engines — especially as exhaust valves, where elevated temperatures and corrosive conditions demand superior materials and design. Whether building a dedicated race engine or upgrading a high-performance street machine, Manley Race Flo valves offer the durability, flow optimization, and precision machining needed to support aggressive cam profiles and high cylinder pressures.