Valve Spring

Valve spring free length (approx.) 45.5 mm (1.6598 inch)
Valve spring squareness 2 degrees
Valve spring compression pressure 711.47 N @ 26.19 mm (159.9 ft. lbs. - 1.031 inch)
Valve spring installed height 36.14 mm (1.4228 inch)
Valve spring installed pressure 289.1 N @ 36.14 mm (64.99 ft. lbs. - 1.4228 inch)
Valve spring installed pressure-service limit 10% pressure loss 28.02 mm (1.103 inch)