Valve Spring

Valve Springs Compression Pressure (Kg [Lb] @ Spec. Length)
Loaded 800.6 N (180 lbs.) @ 29.5 mm (1.16 in.)
Unloaded 288.1 N (65 lbs.) @ 40.1 mm (1.58 in.)
Valve Springs Free Length (Approximate) 46.7 mm (1.84 in.)
Valve Springs Assembled Height 40.08 mm (1.58 in.)
Valve Springs Service Limit 10% Force Loss @ Specified Height