Valves - Nitro Black

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Engine Pro's valves are the Premier Choice for valves. Four Series of valves assures you that you can find the right valve for your demanding application from Original Replacements to Street / Strip to Professional Racing. All Engine Pro Valves are manufactured to American specifications and standards in one facility located in the Western Hemisphere in one of the most sophisticated valve plants in the world for stainless steel and titanium materials, assuring tight tolerances in quality . Every valve is concentric in relation of the valve's head to the stem, which reduces wear on the valve, valve seat and the valve guides. This makes Engine Pro Valves the choice of professionals.

• Deep Nitriding Provides Better Ductility Under The Hard Nitrided Layer And Is Proven In Rotating-Bending Fatigue Tests
• One Piece Forging In 21-4N High Strength Stainless Alloy
• Our Nitriding Process Is Much Cleaner Than Chroming-It's Better For The Enviroment!
• Proprietary Liquid Nitride Process Creates A Valve That Is Smoother, Stronger And More Corrosive Resistant Than Traditional Chrome Valves, Even With Exotic Fuels
• Smoother Valve Stems Mean Less Valve and Guide Friction
• Swirl Polished For Improved Flow Characteristics
• These Valves are Less Likely to Break Even if Contacted by the Piston and Greater Surface Hardness Means Less Valve Guide Wear
• Fully Undercut Stem
• Hard Wafer Tip
• Laboratory Tests Prove The Nitro Black Performance Valves Are 21% Smoother That Traditional Chrome Plated Valves
• Less Friction Means More Power, Less Wear And Less Chance Of Breakage Even If Contacted By The Piston
• Manufactured To USA Standards