Valve Spring

Valve Springs
Free Length-Intake (Approx.) 43.675 mm (1.7195 in.)
Free Length-Exhaust (Approx.) 44.319 mm (1.7448 in.)
Spring Force-Intake (Valve Closed) 309-358 N @ 38.0 mm (69.5-80.5 lbs. @ 1.4961 in.)
Spring Force-Exhaust (Valve Closed) 314-354 N @ 38.0 mm (71-79 lbs. @ 1.4961 in.)
Spring Force-Intake (Valve Open) 836-907 N @ 29.85 mm (188-204 lbs. @ 1.1594 in.)
Spring Force-Exhaust (Valve Open) 579-640 N @ 31.47 mm (130-144 lbs. @ 1.239 in.)
Number of Coils-Intake 6.86
Number of Coils-Exhaust 7.66
Color of Spring (Top of Coils)
-Intake (Right Hand Coil Direction) Orange
-Exhaust (Left Hand Coil Direction) Yellow
Wire Diameter-Intake 4.29-4.34 mm (0.1689-0.1709 in.)
Wire Diameter-Exhaust 4.16-4.22 mm (0.1638-0.1661 in.)
Spring Installed Height (Spring Seat to Bottom of Retainer)-Intake & Exhaust 38.0 mm (1.4961 in.)