Surface Variation
| Cylinder Head Maximum Flatness Variation Over 25.4 mm (1.0 inch) | 0.001 inch |
| Cylinder Head Maximum Flatness Variation Over 152.4 mm (6.0 inch) | 0.002 inch |
| Cylinder Head Maximum Overall Flatness Variation | 0.003 inch |
| Do Not Resurface if the Overall Measurement is Less Than | 0.003 inch |
| Replace the Head if the Overall Measurement is More Than | 0.010 inch |
| Resurface the Head if the Overall Measurement is More Than | 0.003-0010 inch |