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

Manley Performance Race Master Stainless Steel Valves High-strength stainless construction — Manley Race Master valves (exhaust XH-426, intake NK-842) are built from premium stainless steel for exceptional durability and corrosion resistance in high-rpm and high-temperature environments. Chrome stems & hard tips: Chrome-plated stems reduce wear and scuffing; hardened tips extend service life under severe duty. Swirl-polished underhead: Smooth, swirl-polished underside improves airflow and reduces turbulence for better cylinder filling. Fully machined combustion faces: Precision-machined faces ensure optimal sealing, consistent contact pattern, and improved combustion efficiency. Multiple profiles: Available in Race Master (straight stem) and Race Flo shapes to match valve train geometry and performance goals. Alcohol engine recommended: Specifically recommended as exhaust valves for alcohol-fueled race engines where thermal load and corrosive conditions demand robust materials. Every valve is engineered for race-level reliability and consistent performance, making Manley Race Master valves an ideal upgrade for high-performance and competition engines.