Valve Guide: Specifications

Valve guide bore diameter 6.06 mm (0.23858 inch)
Valve stem diameter 6.03 mm (0.23740 inch)
Valve stem-to-guide clearance
Valve head diameter-intake 32.0 mm (1.2598 inch)
Valve head diameter-exhaust 28.0 mm (1.10236 inch)
Valve face runout 0.035 mm (0.0013779 inch)
Valve face angle 45 degrees
Valve seat width
Valve seat runout
Valve seat angle
Valve spring free length 43.2 mm (1.701 inch)
Valve spring squareness
Valve spring compression pressure-intake 365 N (82.1 lbs.) @ 25.1 mm (0.988 inch)
Valve spring compression pressure-exhaust 422 N (94.94 lbs.) @ 26.1 mm (1.0275 inch)
Valve spring installed height 34.2 mm (1.346 inch)
Valve spring installed height-service limit 34.2 mm (1.346 inch) ± 0.65 mm (0.0256 inch)
Valve spring installed pressure-intake 145 N (32.596 lbs.)
Valve spring installed pressure-exhaust 180 N (40.464 lbs.)