Speedmaster aluminum timing covers are the perfect way to add strength and durability to the front of your engine, not to mention increased looks. TheseSpeedmaster cast aluminum timing covers are the perfect addition to your powerhouse. They feature a stout die-cast aluminum design to keep true, and have thick gasket rails for rigidity and optimum oil sealing. With their stunning finish, you'll be sure to turn some heads when you pop the hood. The covers clear most timing chains and under-the-cover style gear drives. Some minor machining may be required for use with cam buttons or roller cams.