Supertech Performance VWIVN-1035 Engine Intake/Exhaust Valve

Supertech Performance brings over 20 years of manufacturing expertise to the VWIVN-1035, a precision-engineered engine valve designed for high-performance and demanding applications. Developed in close collaboration with professional engine builders, each valve undergoes intensive testing to ensure exceptional flow rates, long-term durability, and consistent quality.

Supertech recognizes that every engine has unique demands, which is why these valves are available in a range of materials to suit various performance levels and operating conditions:

• Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for superior strength and reliability. Supertech primarily utilizes EV8 (21-4N) stainless alloy for both intake and exhaust valves, with additional alloy options available featuring specific heat treatments for specialized applications.
• Inconel 751 Nickel-Base Alloy: Engineered for exhaust valves operating under extreme heat conditions — ideal for turbocharged and supercharged applications where standard materials would be insufficient.

To combat the effects of high heat and friction, Supertech applies two performance-grade surface treatments:

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

Sold individually (per valve). Please order the exact quantity required for your engine build. For example, an engine requiring 16 valves will need a quantity of 16.