Valve Spring

Valve spring free length-intake 42.16 mm (1.6598 inch)
Valve spring free length-exhaust 42.16 mm (1.6598 inch)
Valve spring squareness 2 degrees
Valve spring compression pressure-intake 711.47 N @ 26.19 mm (159.9 ft. lbs. @ 1.031 inch)
Valve spring compression pressure-exhaust 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-intake 289.1 N @ 36.14 mm (64.99 ft. lbs. @ 1.4228 inch)
Valve spring installed pressure-exhaust 289.1 N @ 36.14 mm (64.99 ft. lbs. @ 1.4228 inch)