Valve Spring

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