Valve Seat

VALVE SEAT DIMENSIONS:

Valve Seat, Intake:

Intake:
Seat diameter: 39.2 mm (1.543 in.)
Seat width: approx. 2.0 mm (0.079 in.)
Valve seat angle: 45°
Correction angle, upper: 30°

Valve Seat, Exhaust:

Exhaust:
Seat diameter: 32.4 mm (1.276 in.)
Seat width: approx. 2.4 mm (0.094 in.)
Valve seat angle: 45°
Correction angle, upper: 30°

VALVE SEAT REFACING DIMENSION:

Checking Valve Seat Resurfacing Dimension:

Minimum dimension [1]:
Intake: 33.8 mm (1.331 in.)
Exhaust: 34.1 mm (1.343 in.)


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[1]: Dimension "a", distance between top of valve stem and gasket surface of cylinder head.