Z Whip Set of 8 LS Series Valve Cover Bolt Assemblies. OEM replacement comes as pictured with Grommet Seals, Bolts, & Crush Sleeves (Spacer to keep from over tightening and breaking your valve cover). Compatible with ALL Chevrolet GM LS Series Engines 1997-2014 (99-2013 4.8L,5.3L,6.0L,6.2L Vortec Truck Engines) LS1, LS2, LS3, LS6, LS7, LS9, GM 4.8L 5.3L 6.0L 6.2L. Also Fits LSX LM7 LR4 LQ4 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87 Engines. These do not fit Early LS Perimeter Bolt Valve Coves (Found on 1997-1998 LS1 Corvette Camaro Trans Am). Recommend Torque on these are 106 IN LB.