Improving upon the “blue” GM LS6 factory valve spring, COMP Cams Beehive LS6+ Valve Springs allow for 4% higher seat and open loads for better dynamic control, as well as an extra . 030” of lift capability. These springs are the perfect option when performing a mild performance cam swap or when looking to refresh an old engine. The use of premium wire and small batch manufacturing processes ensure maximum quality and durability. The Beehive LS6+ Valve Spring Kits are specifically matched as an excellent upgrade for COMP Cams NSR (No Springs Required) LS Camshafts and feature all the components needed to install these revolutionary springs with no machine work required. Each Beehive LS6+ Valve Spring Kit includes Beehive Valve Springs, chrome moly steel retainers, locks, valve seals and spring seats.