Supertech Performance SEVI-1010 Performance Engine Valve

The Supertech Performance SEVI-1010 is a precision-engineered performance engine valve, backed by over 20 years of manufacturing expertise. Developed in close collaboration with professional engine builders, Supertech valves are engineered to deliver exceptional flow rates, long-term durability, and consistent quality across a wide range of motorsport and high-performance applications.

Supertech recognizes that every engine has unique demands, which is why their valves are available in multiple materials and surface treatment options to match specific performance requirements.

Material Options:

• Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for superior strength and reliability. Primarily used for both intake and exhaust valves, with various heat treatments available for application-specific tuning.
• Inconel 751 Nickel-Base Alloy: Designed for extreme-heat exhaust applications including turbocharged and supercharged engines where standard materials may fail under elevated temperatures.

Surface Coating Options:

• Chrome Coating: A widely-used treatment in performance valve applications that provides a hardened, wear-resistant surface.
• Black Nitride Treatment: A case-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 — one valve per unit. When ordering for an engine that requires multiple valves (for example, a 16-valve engine), enter the required quantity at time of purchase.