Grand Prix V6-191 3.1L VIN M SFI (1998)
Valve Spring: Specifications
Valve Springs Free Length .......................................................................................................................................................... 48.5 mm (1.89 inch)
Valve Springs Load (Closed) ...................................................................................................................... 320 N @ 43.2 mm (75 lb. @ 1.701 inch)
Valve Springs Load (Open) ........................................................................................................................ 1036 N @ 32 mm (230 lb. @ 1.260 inch)
Installed Height Intake - Exhaust ............................................................................................................................................... 43.2 mm (1.701 inch)
Approx. # or coils ................................................................................................................................................................................................. 6.55
