Valve Spring: Specifications

Free Length 51.3 mm (2.02 inches)
Pressure Closed 360-396 N at 45.2 mm (81-89 lbs. at 1.78 inches)
Pressure Open 1090-1179 N at 33.8 mm (245-265 lbs. at 1.33 inches)
Installed Height Intake 45.2 mm (1.78 inches)
Installed Height Exhaust 45.2 mm (1.78 inches)