Supertech Performance HEVN-1000 Performance Engine Valve

Supertech Performance brings over 20 years of manufacturing expertise to every valve they produce. Through intensive testing and close collaboration with professional engine builders, Supertech continuously refines their product line to deliver exceptional flow, durability, and reliability for a wide range of performance applications.

Supertech valves are available in multiple materials to meet the unique demands of any engine build:

Stainless Steel (EV8 / 21-4N Alloy)

• One-piece forged construction for maximum strength and reliability
• Primarily used for both intake and exhaust valves across a broad range of applications
• Additional alloys and heat treatments available for specialized engine requirements

Inconel 751 Nickel-Base Alloy

• Designed specifically for exhaust valves operating at extreme temperatures
• Ideal for turbocharged and supercharged applications where heat is a critical concern

To combat the effects of high heat and friction, Supertech applies one of two protective coatings to their valves:

• Chrome Coating — A widely used treatment in performance valves providing excellent surface hardness and heat resistance
• Black Nitride Coating — A hardening treatment that produces a smoother surface than chrome, reducing friction between the valve stem and guide for improved longevity

Sold individually — order one valve per quantity. For example, an engine requiring 16 valves will need a quantity of 16 at checkout.