Manley Performance Race Master Stainless Steel Valves with Chrome Stems and H...

Manley Performance Race Master Stainless Steel Valves High-performance stainless steel valves engineered for racing engines that demand durability, flow and repeatable results. Manley Performance Race Master valves pair premium materials with precision machining to deliver reliable service in the most demanding conditions. Stainless Steel Construction: Intake (NK-842) and exhaust (XH-426) valves are made from high-quality stainless steel for superior strength and corrosion resistance. Chrome Stems & Hard Tips: Chrome-plated stems reduce wear and scuffing while hard tips increase tip life under extreme valve train loads. Swirl-Polished Under Head: Polished under-head areas improve airflow and reduce turbulence for better cylinder filling and combustion. Fully Machined Combustion Faces: Precision machining ensures consistent sealing, heat transfer and valve to seat fitment. Available Shapes: Choose Race Master (straight stem) or Race Flo profiles to match your engine’s performance goals and port design. Recommended for Alcohol Engines: Especially suited as exhaust valves in alcohol-fueled engines where elevated temperatures and corrosive conditions exist. Whether building a purpose-built race motor or upgrading a high-output street/strip engine, Manley Race Master valves offer a race-proven combination of material, finish and geometry to maximize engine life and performance.