Supertech Performance NIVN-1009 Intake Valve for Nissan KA24DE Engine

The Supertech Performance NIVN-1009 is a high-performance engine valve engineered for the Nissan KA24DE engine, as found in the 240SX and other applications. Backed by over 20 years of manufacturing expertise, Supertech designs each valve through intensive testing and close collaboration with professional engine builders — ensuring continuous improvements in flow, durability, and quality.

Key Features:

• One-Piece Forged Stainless Steel Construction: Manufactured from EV8 (21-4N) stainless steel alloy, providing superior strength and long-term reliability under high-stress engine conditions.
• High-Flow Design: Engineered for maximum airflow efficiency to support both naturally aspirated and performance-built KA24DE engines.
• Chrome Coating Option: A widely used surface treatment in performance valves that adds hardness and corrosion resistance.
• Black Nitride Treatment: A hardening surface process that delivers a smoother finish than chrome, reducing friction between the valve stem and guide for improved longevity and performance.
• Inconel 751 Nickel-Base Alloy (Exhaust Applications): For exhaust valves exposed to extreme temperatures — ideal for turbocharged or supercharged builds where heat resistance is critical.
• Sold Per Valve: Order the exact quantity needed for your application. For a 16-valve engine such as the KA24DE, order a quantity of 16.

Supertech recognizes that every engine build has unique demands. Their broad range of valve materials, alloys, and surface treatments ensures the right valve is available for every level of performance — from mild street builds to full-competition engines.