These classic valve covers for small block Ford engines are die-cast from high-quality 383-3 aluminum alloy then polished to a beautiful finish. They also feature a cadmium plated oil filler tube to help stop corrosion, an improved oil baffle design to accommodate high-lift camshafts, and will work with most roller rockers. Spark plug wire brackets and PCV grommet included. Sold as a pair. Will not fit EFI cars.