These Holley aluminum LS valve covers will give your Chevrolet LS series engine a totally new look without the need to relocate your ignition coils. They are manufactured from cast aluminum, come in four different finishes, and feature a billet aluminum oil fill cap. The valve covers eliminate the need for the factory ignition coil bracket. Instead, the coils bolt directly to the valve covers for a nice angled look! Holley aluminum LS valve covers reuse the factory gaskets and bolts, will work with .750 in. lift camshafts using stock-style rocker arms, and fit all ignition coils with 72mm spacing.