Supertech Performance HEVN-1042D High-Performance Engine Valve

Supertech Performance brings over 20 years of manufacturing expertise to their premium engine valve lineup. Engineered through intensive testing and close collaboration with professional engine builders, Supertech valves deliver exceptional high-flow performance, durability, and precision quality for demanding applications.

Supertech recognizes that every engine has unique requirements, which is why their valves are offered in a range of materials to match any build — from street performance to forced induction competition engines.

Available Materials:

• Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for maximum strength and reliability. The EV8 alloy is used for both intake and exhaust valves, with additional alloy options and heat treatments available for specialized applications.
• Inconel 751 Nickel-Base Alloy: Designed for extreme-heat exhaust valve applications, including turbocharged and supercharged engines where conventional materials fall short.

Protective Coatings:

• Chrome Coating: A widely used finish in high-performance valve applications, providing excellent surface hardness and wear resistance.
• Black Nitride Treatment: A surface-hardening process that produces a smoother finish than chrome, reducing friction between the valve stem and guide for improved longevity and performance.

Sold individually — one valve per unit. Order the quantity equal to the total number of valves required for your engine build.