Supertech Performance AIVN-1103 High-Performance Engine Valve

Supertech Performance brings over 20 years of manufacturing expertise to their precision-engineered engine valves. Developed through intensive testing and close collaboration with professional engine builders, Supertech valves deliver continuous improvements in high flow rate, durability, and quality for a wide range of performance applications.

Supertech recognizes that every engine has unique demands, which is why their valves are offered in multiple material options to suit any build — from street performance to forced induction and competition use.

Available Valve Materials:

• Stainless Steel (EV8 / 21-4N Alloy): One-piece forged construction for maximum strength and reliability. Supertech primarily uses EV8 (21-4N) alloy for both intake and exhaust valves, with additional alloys and heat treatments available for specialized applications.
• Inconel 751 Nickel-Base Alloy: Engineered for exhaust valves subjected to extreme heat, making it the ideal choice for turbocharged and supercharged engine applications where standard stainless steel may fall short.

Protective Coating Options:

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

Sold individually — per valve. Please order the quantity that matches your engine's total valve count (e.g., order 16 for a 16-valve engine).