Valve: Specifications
| Face Angle | 43.25-43.75 Degrees (deg) |
| Intake Head Diameter | 1.88 Inch (in) |
| Exhaust Head Diameter | 1.617 Inch (in) |
| Intake Overall Length | 4.969-4.994 Inch (in) |
| Exhaust Overall length | 4.978-40.12 Inch (in) |
| Intake Stem Diameter | 0.372-0.373 Inch (in) |
| Exhaust Stem Diameter | 0.371-0.372 Inch (in) |
| Intake Stem to Guide Clearance | 0.001-0.003 Inch (in) |
| Exhaust Stem to Guide Clearance | 0.002-0.004 Inch (in) |