Compatible with 2004-Newer LS1 LS3 5.3L 5.7L 6.0L engines; 2004-2019 Chevy LS1 LS6 L98 4.8L 5.3L 6.0L Engines. Compatible with Chevy LS1 LS6 4.8L 5.3L. Complete 90-Piece Cylinder Head Stud Kit. With professional processing technology, each component is designed to provide accurate torque readings, so you can trust the integrity of your engine assembly.