Katech LS Valve CoversKatech designed a valve cover system for the GM Gen 3 4 engines. These covers, made out of cast aluminum, are not only functional, but a great way to add that special touch under the hood. The raised design of the cover facilitates the use of aftermarket valvetrain components such as larger springs and rocker arms. (These covers come in cast aluminum and DO NOT come powder coated unless color is selected) + $300 Comes with: Bolts Gaskets Fittings