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Cobra Automotive uses Ferrea valves in our own racing engines because of their reputation as the industry’s most reliable extreme-duty valve.  Results from extensive internal R&D are utilized to ensure the absolute best valves on the market.  The comprehensive selection includes the 5000 Series, 6000 Series, Competition Plus Series, Hollow Stem Competition Plus Series, and Titanium Valves.  Our extensive experience building state-of-the-art vintage racing engines enables us to recommend the best valves for your engine based on the application and performance requirements.  Speak to our engine staff for custom valves for your application.