Manley Ford 4.6L DOHC (4 Valve) Triple Groove 37mm Race Master Intake Valves

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.This Part Fits: Year Make Model Submodel 2005-2006 Ford GT Base 2007-2008 Ford Mustang Shelby GT500 1999,2001 Ford Mustang SVT Cobra 2000 Ford Mustang SVT Cobra R