Chevrolet Gen III/IV LS - Cast Aluminum - Coil-Mounting Base & Integrated Coil Cover;Cast aluminum 2-Piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies; Retain the performance of factory coil-on-cover ignition without the unsightly styling; Base fits LS1, LS2, LS3, LS6 and LS7 engines; Base features internally baffled ventilation system; Clearance for .750” lift cam with stock style rocker arms; Coil cover features Holley vintage style fins and cast-in wiring provisions; No coil relocation, wire harness extensions, or custom spark plug wires required; Includes low-profile billet oil fill cap; Includes all necessary coil mounting and dress-up hardware;