Valve Spring

Number 12
Free Length 48.5 mm (1.909 inch)
Wire Diameter 4.75 mm (0.187 inch)
Number of Coils 6.8
Installed Height 41.2 - 42.7 mm (1.622 - 1.681 inch)
Load When Compressed:
Valve Closed 95 - 100 lbs. @1.570 inch
Valve Open 207 - 229 lbs. @1.169 inch