| Maximum Warpage |
| Cylinder Head Surface |
.002" (.05 mm) |
| Manifold Surfaces |
.004" (.10 mm) |
| Intake & Exhaust |
| Cylinder Head Valve Guide Bore (Max) |
.4341" (11.026 mm) |
| Valve Seats |
| Seat Angle |
45° |
| Seat Contact Width |
.039-.055" (1.0-1.4 mm) |
| Valve Guide I.D. |
.2366-.2374" (6.010-6.029 mm) |
| Valve Guide Protrusion |
.500-.516" (12.70-13.11 mm) |
| Intake |
| Valve Stem-To-Guide Oil Clearance |
| Standard |
.0010-.0024" (.025-.061 mm) |
| Wear Limit |
.003" (.08 mm) |
| Exhaust |
| Valve Stem-To-Guide Oil Clearance |
| Standard |
.0012-.0026" (.030-.066 mm) |
| Wear Limit |
.004" (.01 mm) |