These premium valve covers are die-cast aluminum, manufactured to GM specifications, equipped with internal oil drippers and GM-designed baffles. They come with recessed Bowtie and Chevrolet Emblems or in raised and milled style. These valve covers are the Tall version and come with grommets. Designed to fit 1955 to 1986 262-400 Small Block Chevy engines. This is an officially licensed GM Performance Parts product. Sold as one pair. Backed by a limited 30 day factory warranty.