Valve Guide

Valve guide bore diameter mm (inch) 7.00 - 7.018 mm (0.276 inch)
Valve stem diameter intake mm (inch) 6.965 - 6.98 mm (0.274 - 0.275 inch)
Valve stem diameter exhaust mm (inch) 6.95 - 6.965 mm (0.274 inch)
Valve stem-to-guide clearance exhaust mm (inch) 0.035 - 0.068 mm (0.001 - 0.003 inch)
Valve stem-to-guide clearance intake mm (inch) 0.020 - 0.053 mm (0.001 - 0.002 inch)
Valve head diameter intake mm (inch) 45.9 - 46.1 mm (1.807 - 1.815 inch)
Valve head diameter exhaust mm (inch) 38.9 - 39.1 mm (1.531 - 1.539 inch)
Valve face runout 0.03 (0.001)
Valve face angle (degrees) 45°
Intake: 1.556 - 2.404 mm (0.06 - 0.094 inch)
Exhaust: 1.273 - 2.121 mm (0.05 - 0.083 inch)
Valve seat runout (TIR maximum) mm (inch) 0.059 mm (0.002 inch)
Valve seat angle (degrees) 45°
Valve spring free length intake mm (inch) 43.1 mm (1.7 inch)
Valve spring free length exhaust mm (inch) 43.1 mm (1.7 inch)
Valve spring squareness --
Valve spring compression pressure intake (at specified height) (lb) 275 - 305 Nm at 35.9 - 36.7 mm (202.84 - 224.968 ft. lbs. at 1.413 - 1.445 inch)
Valve spring compression pressure exhaust (at specified height) (lb) 275 - 305 Nm at 35.9 - 36.7 mm (202.84 - 224.968 ft. lbs. at 1.413 - 1.445 inch)
Valve spring installed height intake mm (inch) 39.86 - 40.86 mm (1.569 - 1.601 inch)
Valve spring installed height exhaust mm (inch) 39.86 - 40.68 mm (1.569 - 1.601 inch)