Supertech Performance VWIVN-1007 Performance Engine Valve

Supertech Performance brings over 20 years of manufacturing expertise to their engine valve lineup. Engineered in close collaboration with professional engine builders, Supertech valves are continuously refined for high flow rates, long-term durability, and consistent quality — making them a trusted choice for both street and competition applications.

Supertech recognizes that every engine has unique requirements, which is why their valves are offered in multiple material grades to suit a wide range of performance demands:

Material Options:

• Stainless Steel (EV8 / 21-4N): One-piece forged construction for maximum strength and reliability. Supertech primarily uses EV8 (21-4N) alloy for both intake and exhaust valves, with additional alloy and heat treatment options available for specific applications.
• Inconel 751 Nickel Base Alloy: Designed for exhaust valves operating under extreme heat conditions, such as those found in turbocharged or supercharged engines where standard stainless steel may not be sufficient.

Coating Options:

• Chrome Coating: A widely used finish in performance valve applications, providing excellent hardness and wear resistance.
• Black Nitride: A surface hardening treatment that produces a smoother finish than chrome, resulting in reduced friction between the valve stem and guide — ideal for high-RPM and performance-oriented builds.

Sold individually — one valve per unit. Please order the quantity that matches your engine's total valve count. For example, a 16-valve engine requires a quantity of 16.