GM LS Beehive Valve Spring Kit
145LBS @ 1.800" Seat Pressure, 358LBS @ 1.175" Open Pressure, 1.100" Coil Bind

Spring Specifications
Type: Beehivel
OD: 1.307"
ID: 0.885"
Seat: 145LBS @ 1.800"
Open: 358LBS @ 1.175"
Spring Rate: 340 lbs/in
Coil Bind: 1.100"
Max Lift: 0.625"

Kit includes Valve Springs, Retainers, Locks and Seals.