Moroso 73845 Moroso GM LS Ignition Wire Set - Ultra 40 - Sleeved - 15in Wire (Use w/Part No 68471/68473) - BlackMoroso 73845 Moroso GM LS Ignition Wire Set Ultra 40 Sleeved 15in Wire (Use w Part No 68471 68473) Black Ultra 40 Custom Fit Wire Set, Black Wire, Sleeved, For GM LS Series Billet Aluminum Valve Covers You have the Moroso all billet aluminum GM LS valve covers, why use any other spark plug wire than the Moroso Ultra 40 Sleeved sets that were designed to be used with these valve covers? For Moroso Part Nos. 68471 and 68473 All Billet Aluminum Valve