This spark plug wire loom set is a linear style made for 7mm-8mm wires. They mount to the engine valve covers and are designed to fit 1959 to 1986 Small Block Chevy engines. Features a great looking chrome finish along with a red and black Chevrolet "Bowtie" logo. Made from high-quality steel material. Using the valve cover mounting bolts, these handsome Chevrolet chrome looms are positioned along the valve cover to hold the wires in a neat parallel arrangement. The epoxy-coated "Bowtie" emblem is centrally located for maximum visibility. The wire holders are opened and closed individually with a patented nylon wedge to permit the chrome tops to have a smooth surface free of screw holes. Tech Note: Before purchasing, check exhaust manifold for correct usage. for clearance reasons, the manifold must not be much higher than the valve cover mounting flanges. This is an officially licensed Chevrolet Performance Parts product. Sold as one pair. Backed by a limited 30 day factory warranty.