Texas Speed & Performance Valve Covers Kit - Black PowdercoatTexas Speed & Performance valve covers are machined from a block of billet aluminum. They are 1. 5 inches in total height and will come with new rubber o ring gaskets, as well as the necessary hardware to bolt them onto your cylinder heads! They will use a push in style valve cover breather with a rubber grommet, and the opening is 1. 25". They are designed to help clean up the look of the engine compartment, so they do not have coil mounts on them.