1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 Ford Bronco Classic Aluminum Valve Covers for small block Ford engines! These valve covers are die-cast from high-quality 383-3 aluminum alloy, and then given a durable powder-coated wrinkled finish or polished aluminum finish. They also feature a cadmium plated oil filler tube to help stop corrosion, an improved oil baffle design to accommodate high-lift cam shafts, and will work with most roller rockers. Spark plug wire brackets and PCV grommet included.