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 and severe-duty engines. Designed to deliver durability, precise sealing and optimized airflow for maximum power and reliability. Durable stainless steel construction — premium stainless material for both intake (NK-842) and exhaust (XH-426) valves to resist heat, corrosion and fatigue. Chrome stems & hard tips — chrome-plated stems reduce wear and galling; hardened tips improve longevity under heavy valvetrain loading. Swirl-polished underhead & machined faces — swirl polish improves fuel/air mixing while fully machined combustion faces ensure consistent sealing and optimized flow. Multiple profiles — available in Race Master (straight stem) and Race Flo shapes to match specific race engine requirements and port design. Recommended for alcohol engines — ideal choice for exhaust service in alcohol-burning race engines where durability and resistance to extreme conditions are critical. Choose Manley Race Master valves for proven race-level construction, improved wear resistance and flow-focused machining that help extract peak performance from demanding engines.