Valve Seat
| Intake Width | Standard | 0.0394 - 0.0512 Inch (in) | |
| Service Limit | 0.063 Inch (in) | ||
| Exhaust Width | Standard | 0.0512 - 0.0630 Inch (in) | |
| Service Limit | 0.075 Inch (in) | ||
| Angle (Intake and Exhaust) | Standard | 44.5 - 45.5 Degrees (deg) | |
| Service Limit | 44.5 - 45 Degrees (deg) | ||
| Valve Seat Outside Diameter | Intake | Standard | 1.6377 - 1.638 Inch (in) |
| Exhaust | Standard | 1.381 - 1.382 Inch (in) | |
| Seat Bore (Cylinder Head) | Intake | Standard | 1.633 - 1.634 in. |
| Exhaust | Standard | 1.377 - 1.378 in. |