We modify these polished die cast Ford Racing valve covers for competition use, with a machining operation that allows press-in breather tubes that are positioned towards the front of the engine. They are 3.75” tall and will clear most stud girdles and roller rocker arms and will fit all 260-289-302 and 351 Windsor engines. One pair, supplied with a pair of push-on chrome breather caps with hose barbs for vent hoses for a breather/overflow tank.