Polished aluminum ball milled wire loom set. Includes brackets to bolt on to valve cover bolts. Universal fit, holds up to 9.5mm spark plug wires. Includes brackets and hardware for early side bolt valve covers for pre 1985 engines 350.305,400 ,454,396 427 small block or big block …Fits fords and chryslers too. Adapters are needed to use with Chevy center bolt heads, see our other listing. All Top Street Performance products now carry a 1 year warranty.