Supertech Performance SIVN-1050-2-8 Black Nitrided Intake Valve Set 36mm +1mm Oversize

These valves feature a 36mm head diameter (+1mm oversize) and are constructed from premium EV8 (21-4N) stainless steel for exceptional strength and durability.

Key Specifications:

• Head Diameter: 36.00mm (+1mm oversize)
• Valve Length: 105.00mm
• Stem Diameter: 5.46mm
• Material: Forged Stainless Steel 21-4N (EV8)
• Groove Type: Single groove design
• Coating: Black nitride hardening treatment

Performance Features:

• One-piece forged construction for maximum strength and reliability
• Black nitride treatment provides a harder, smoother surface than chrome coating
• Reduced friction between valve stem and guide for improved performance
• Premium EV8 stainless steel alloy with optimized heat treatment
• Engineered for high-flow applications and increased valve lift
• Designed for drag racing, road racing, rally, and other motorsport applications

Supertech Performance leverages over 20 years of manufacturing experience to produce valves that meet the exacting demands of professional engine builders and racers. The black nitride coating offers superior wear resistance and reduced friction compared to traditional chrome-plated valves, making these ideal for high-RPM and forced induction applications. For optimal performance, Supertech recommends installing these valves with upgraded valve springs and valve stem seals.