Cutlass V6-191 3.1L VIN M SFI (1998)
Valve Spring: Specifications
Valve Spring
Valve Springs Free Length .......................................................................................................................................................... 48.5 mm (1.89 inch)
Valve Springs Load (Closed) ................................................................................................................... 320 Nm @ 43.2 mm (75 lbs. @1.701 inch)
Valve Springs Load (Open) ................................................................................................................... 1036 Nm @ 32 mm (230 lbs. @ 1.260 inch)
Installed Height Intake - Exhaust ............................................................................................................................................... 43.2 mm (1.701 inch)
Approximate # or Coils ......................................................................................................................................................................................... 6.55
