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:.960
Hyd./Solid
Max Lift: .650
Spring Type: Single W/Damper
Seat Pressure: 110/1.750
Open Pressure: 270/1.100
Coil Bind: 1.050