The revolutionary design of COMP Cams® Beehive™ Valve Springs delivers increased valve train stability and a much lighter valve train. This is achieved with less spring pressure with better valve control and reduced weight of both the spring and retainer. The unique Beehive™ shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life. Because of the unique Beehive™ design, the valve train can handle more RPM and more aggressive cam profiles. Beehive™ Valve Springs provide a double weight savings in your valve train by reducing weight of the actual spring and allowing a smaller, lighter retainer.