Valve Spring

Valve Spring - Compression Pressure
Intake and exhaust (installed) 38.667 lbs.
Intake (valve open) 8.9 mm (0.35 in) of lift 97.032 lbs.
Exhaust (valve open) 7.4 mm of lift 93.338 lbs.
Free length 44.92 mm (1.768 inch)
Assembled height 37.9 mm (1.492 inch)