Valve Spring

Valve spring free length 53.37 mm (2.10 inch) +1.0 mm (0.039 inch)
Valve spring squareness 2 degrees
Valve spring compression pressure 720.0-800.0 N @ 28.80 mm
Valve spring installed height 39.7-40.3 mm (1.5630-1.5866 inch)
Valve spring installed pressure 283.0-321.0 N @ 42.56 mm