Supertech Performance MIVN-1019-8 Black Nitride Intake Valve Set 34.40mm 21-4N Stainless Steel 8-Pack

These valves are manufactured from enhanced EV8 (21-4N) stainless steel, the highest grade available, providing exceptional strength to withstand demanding motorsport conditions.

Technical Specifications:

• Head Diameter: 34.40mm (standard size)
• Material: 21-4N Stainless Steel with Black Nitride coating
• Groove Type: Single Groove
• Overall Length: 128.80mm
• Valve Type: Intake

Key Features:

• Black Nitride coating reduces surface roughness to 1/3 of chrome-coated valves for superior performance
• Superfinished stems included as standard for reduced friction and enhanced durability
• Precision-manufactured with strict dimensional tolerances for optimal sealing
• Finished seats with tight runout tolerances ensure better sealing and easier installation
• Optimized valve angles for maximum high-flow performance
• One-piece forged construction for ultimate strength and reliability

Supertech valves undergo rigorous quality control including ultrasonic testing, x-ray inspection, laser measurement, and Finite Element Analysis (FEA) to ensure industry-leading performance. Each valve is designed with over 30 years of racing valve development experience and tested extensively with top engine builders to deliver unsurpassed flow rates, durability, and quality.