Valve Spring

Dimensional Specifications
Free Length (Approx):
Intake and Exhaust 48.92 mm (1.9260 inch)
Spring Force (Valve Closed):
Intake and Exhaust 361.0 - 399.0 N @ 40.12 mm (81.15 - 89.70 lbs. @ 1.5795 inch)
Spring Force (Valve Open):
Intake and Exhaust 984.0 - 1076.0 N @ 28.12 mm (221.2 - 241.9 lbs. @ 1.107 inch)
Number of Coils:
Intake and Exhaust 7.30
Wire Diameter:
Intake and Exhaust 4.77 x 3.80mm (0.1878 - 0.1496 inch)
Installed Height (Spring Seat to Bottom of Retainer) Nominal:
Intake 41.11 mm (1.619 inch)
Exhaust 41.13 mm (1.619 inch)