Supertech Performance SEVI-1014 High-Performance Engine Valve

Supertech Performance brings over 20 years of manufacturing expertise to the SEVI-1014, a precision-engineered engine valve designed for demanding performance and racing applications. Developed in close collaboration with professional engine builders, each valve is optimized for high flow rates, long-term durability, and consistent quality.

Material Options:

• Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for superior strength and reliability. Supertech primarily uses EV8 (21-4N) stainless alloy for both intake and exhaust valves, with additional alloys and heat treatments available for specific application requirements.
• Inconel 751 Nickel-Base Alloy: Designed for extreme-heat exhaust applications, including turbocharged and supercharged engines where exhaust temperatures exceed the limits of standard stainless steel.

Protective Coatings:

• Chrome Coating: A widely used treatment in high-performance valves, providing a hard, wear-resistant surface layer.
• Black Nitride Treatment: A surface-hardening process that creates 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 that matches your engine's total valve count. For example, a 16-valve engine requires a quantity of 16.