Valve Seat
Oversize valve seats can be installed. Oversize valve seats are available in .012" (.30 mm) and .024" (.60 mm) oversize. Replacement procedure is not available from manufacturer. Cylinder head must be reworked to proper dimension for oversize valve seat installation. See VALVE SEAT REWORK DIMENSIONS table.
VALVE SEAT REWORK DIMENSIONS
| Oversize Valve Seat In. (mm) | Cylinder Head Bore Diameter In. (mm) | |
|---|---|---|
| Exhaust | ||
| .012 (.30) | 1.3110-1.3120 (33.300-33.325) | |
| .024 (.60) | 1.3228-1.3238 (33.600-33.625) | |
| Intake | ||
| .012 (.30) | 1.3898-1.3907 (35.300-35.325) | |
| .024 (.60) | 1.4016-1.4026 (35.600-35.625) | |