Valve Service Specifications
| VALVE TIMING | Exhaust Valve | Closes (ATDC) | 21 degrees |
| Opens (BBDC) | 60 Degrees | ||
| Duration | 264 Degrees | ||
| Intake Valve | Closes (ATDC) | 61 Degrees | |
| Opens (BBDC) | 10 Degrees | ||
| Duration | 250 Degrees | ||
| Valve Overlap | 31 Degrees | ||
| VALVES | Face Angle | 43.25 - 43.75 | |
| Head Diameter | Intake | 1.916 | |
| Exhaust | 1.624 | ||
| Length (Overall) | Intake | 4.893 - 4.918 | |
| Exhaust | 4.907 - 4.932 | ||
| Lift | (@ zero lash) | 0.432 inch | |
| Stem Diameter | 0.311 - 0.312 |