GM LS Dual Valve Spring Kit with Titanium Retainers
125LBS @ 1.800" Seat Pressure, 370LBS @ 1.150" Open Pressure, 1.100" Coil Bind

Spring Specifications
Type: Duel
OD: 1.295"
ID: 0.676"
Seat: 125LBS @ 1.800"
Open: 370LBS @ 1.150"
Spring Rate: 341 lbs/in
Coil Bind: 1.100"
Max Lift: 0.650"

Kit includes Valve Springs, Retainers, Locks and Seals.