COMP Cams Valve Springs 1.240in BeehiveWith a . 525" maximum lift, these Beehive Valve Springs were designed for hydraulic or Solid flat tappet as well as hydraulic Roller cams. They work in most Small Block Chevy heads with no machining. COMP Cams Beehive Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive shape