COMP Cams Valve Springs 1.445in BeehiveWith a . 600" maximum lift, these Beehive Valve Springs were designed for hydraulic or Solid flat tappet cams as well as hydraulic Roller cams. They allow Big block engines to turn more RPM. 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 handles valve