These Slant-Edge valve covers are Tall, and designed to clear roller rockers and polylock nuts. Made from Die-Cast Aluminum, they have raised and milled emblems and also recessed black emblems. All valve covers include baffles, grommets, and a pair of unique bolts. Fits 1962-2001 260-289-302-351W Small Block Ford Engines. U.S. Pat. D670,360. Not for use on engines with EFI manifolds. Officially Licensed Ford Product. Sold As One Pair.