Valve Covers, Stock Height, 3 in. Overall Height, Cast Aluminum, Black Powdercoated, Small Ford, PairMade from durable A319 aluminum, Trick Flow cast aluminum valve covers not only look great, they are much less prone to flex and distortion than factory stamped steel or plastic covers. That eliminates cracking and helps prevent oil leaks. Stock height valve covers clear roller rocker arms; tall height valve covers clear roller rocker arms and rocker stud girdles.Valve covers for Ford 4.6L/5.4L 2V engines include a baffled PCV connection plus baffled and threaded fresh air connections for forced induction applications. The covers fit engines with left or right side oil fill.