Valve Spring

Valve Spring
Free Length (52.9 mm 2.08 inch)
Installed Height (Exhaust) (45.75 mm 1.8 inch)
Installed Height (Intake) 45.75 mm (1.8 inch)
Pressure (Closed) 340 N at 45.75 mm (76 lb. at 1.8 inch)
Pressure (Open) 980 N at 33.55 mm (220 lb. at 1.32 inch)