Valve Spring

Free Length 40.4 mm (1.591 inches)
Force Required To Compress:
Valve Closed 205 N at 30.3 mm (46 lbs. at 1.19 inches)
Valve Open 409 N at 21.7 mm (92 lbs. at 0.854 inches)
Installed Height 30.3 mm (1.19 inches)