Valve: Specifications
| Face Angle | 45 - 45.5 Degrees (deg) |
| Head Diameter Intake | 1.915 - 1.925 Inch (in) |
| Head Diameter Exhaust | 1.575 - 1.585 Inch (in) |
| Length-Intake (Overall) | 4.055 Inch (in) |
| Length-Exhaust (Overall) | 4.043 Inch (in) |
| Valve Margin-Intake | 0.047 Inch (in) |
| Service Limit | 0.027 Inch (in) |
| Valve Margin-Exhaust | 0.079 Inch (in) |
| Service Limit | 0.059 Inch (in) |
| Valve Stem Tip Height | 1.929 Inch (in) |
| Stem Diameter-Intake | 0.313 - 0.314 Inch (in) |
| Stem Diameter-Exhaust | 0.312 - 0.3125 Inch (in) |
| Stem-to-Guide Clearance-Intake | 0.001 - 0.002 Inch (in) |
| Service Limit | 0.004 Inch (in) |
| Stem-to-Guide Clearance-Exhaust | 0.0019 - 0.003 Inch (in) |
| Service limit | 0.0071 Inch (in) |