Supertech Performance GEVI-0012S High-Performance Engine Valve

Supertech Performance brings over 20 years of precision manufacturing expertise to their engine valve lineup. Developed through rigorous testing and close collaboration with professional engine builders, Supertech valves deliver an optimal combination of high flow rate, durability, and quality for performance and racing applications. Each valve is sold individually (Per Valve) — order the exact quantity required for your engine build.

Material Options:

• Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for maximum strength and long-term reliability. Supertech primarily uses EV8 (21-4N) stainless for both intake and exhaust valves, with additional alloys and heat treatment options available for specialized applications.
• Inconel 751 Nickel-Base Alloy: Engineered for exhaust valves operating under extreme heat conditions, making this material the ideal choice for turbocharged and supercharged engine builds where exhaust temperatures are significantly elevated.

Coating Options:

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

Supertech Performance designs each valve with the understanding that every engine has unique demands. Whether building a naturally aspirated street engine or a high-boost forced induction race motor, Supertech offers the right material and coating combination to meet the application's specific requirements.