GSC POWER-DIVISION SINGLE BEEHIVE VALVE SPRINGS (ALL 4G63)
GSC Power-Division Beehive springs feature some of the most impressive manufacturing techniques in the industry. Our beehive spring uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. What this means to you is our spring has the highest level of spring load retention while still maintaining good fatigue threw out the life of the spring. The retainer side of the valve spring has a smaller diameter to greatly reduce coil spring surging and improve valve control even at extreme rpm levels. Only the best materials go into the GSC Power-Division Beehive valve spring.
Each batch is scrutinized for tensile strength properties, ductility, inclusion content, and fatigue toughness. Each new design is tested to 9,000RPMS so you can rest assure that you have the best possible valve spring set available on the market.
The GSC Beehive spring is a factory replacement and will use your stock EVO 8/9 OEM retainer and Valve Seat to ensure an easy install. Spring Pressures : Seat @ 1.56"=68 lbs / .300"=160lbs / .400"=190lbs / .450"=210lbs / .625"= Coil bind. *Max lift on stock Retainer is 11.4mm at the valve or .259" cam lobe lift.* ]
Please Note: DSM's use a conventional spring and their retainers are not compatible with beehive design. EVO retainers will be required.