Type: Valve Spring Set (16) Style: Single Spring w/ Damper O.D.: 1.260" I.D.: .876" Seat Load: 115 lbs @ 1.780" Open Load: 340 lbs @ 1.250" Coil Bind: 1.150" Max Lift: .570" Rate: 425 lbs/in. Suggested Retainer: HWD-97112, 97132