Herbert Valve Springs are manufactured from the highest quality materials and are inspected during every step of manufacturing to insure the kind of performance you would expect.
OD:1.437
ID:.750
Hyd./Solid
Max Lift: .675
Spring Type: Dual W/Damper
Seat Pressure: 125/1.750
Open Pressure: 340/1.150
Coil Bind: 1.050