Ford 7.3L Powerstroke Navistar 444TE Turbo Nitro Black Diesel Intake Valves 16 Valves Head Diameter 1.681 Inch Stem Diameter .3122 Inch Overall Length 5.798 Inch Tip Length .339 Inch Seat Angle 30 Degree

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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.

• 21-4N High Strength Stainless Alloy
• Better Ductility Makes The Valve Less Likely To Break, Even If Contacted By A Piston
• Greater Surface Hardness Reduces Crack Formation
• Manufactured To USA Standards
• Proprietary Liquid Nitride Process Creates A Valve That Is Smoother, Stronger And More Corrosive Resistant Than Traditional Chrome Valves, Even With Exotic Fuels
• Resists Corrosion And Deposits Caused By Exotic Fuels
• Smoother Valve Stems Mean Less Valve and Guide Friction
• Stellite Facing Creates Additional Heat Resistance On The Head Of The Valve