Moroso 68476 Moroso GM LS Valve Cover (w/AEM/Holley/Other Smart Coils) - Tall - Billet Aluminum - PairMoroso 68476 Moroso GM LS Valve Cover (w AEM Holley Other Smart Coils) Tall Billet Aluminum Pair GM LS Series Tall Billet Aluminum Valve Covers with AEM, Holley and other Smart Coil, coil mounts Fits GM LS SERIES stock and aftermarket cylinder heads 2 1 2" tall to clear most aftermarket valvetrains Valve covers feature a port that a Moroso Part No. 68857 breather or COPO breather snaps into, can then be unsnapped to use an oil fill The integral coil