Valve Spring

Valve Springs Free Length 48.5 mm (1.89 inch)
Valve Springs Load (Closed) 320 N @ 43.2 mm (75 lbs. @ 1.701 inch)
Valve Springs Load (Open) 1036 N @ 32 mm (230 lbs. @ 1.260 inch)
Installed Height Intake-Exhaust 43.2 mm (1.701 inch)
Approx. # Or Coils 6.55