Valve, Intake/Exhaust
| Face Angle | Intake and Exhaust | 45-45.5 Degrees (deg) |
| Head Diameter | Intake | 1.303-1.313 Inch (in) |
| Exhaust | 1.124-1.135 Inch (in) | |
| Margin Intake | 0.0452-0.0583 Inch (in) | |
| Service Limit | 1/32 Inch (in) | |
| Margin Exhaust | 0.058-0.071 Inch (in) | |
| Service Limit | 3/64 Inch (in) | |
| Length Overall | Intake | 4.515-4.535 Inch (in) |
| Exhaust | 4.603-4.623 Inch (in) | |
| Stem Diameter | intake | 0.2337-0.2344 Inch (in) |
| Exhaust | 0.2326-0.2333 Inch (in) | |
| Stem to Guide Clearance-Intake | 0.0018-0.0025 Inch (in) | |
| Max. Allowable | 0.003 Inch (in) | |
| Service Limit | 0.010 Inch (in) | |
| Stem to Guide Clearance-Exhaust | 0.0029-0.0037 Inch (in) | |
| Max. Allowable | 0.004 Inch (in) | |
| Service Limit | 0.010 Inch (in) |