Brian Tooley Racing BTR SP011-16: SP011-16 Beehive Valve Spring Set, GM LS6, Max Lift: .560 in.
Valve Spring Kits
Beehive Valve Spring Set GM LS6 Seat Pressure: 100 lbs. @ 1.800 in. Open Pressure: 285 lbs. @ 1.240 in. Coil Bind: 1.150 in. Max Lift: .560 in. Set of 16