K20A3 Engine
| Valves | Clearance (cold) | Intake | Standard or new | 0.21 - 0.25 mm |
| Exhaust | Standard or new | 0.28 - 0.32 mm | ||
| Stem O.D. | Intake | Standard or new | 5.475 - 5.485 mm | |
| Service limit | 5.445 mm | |||
| Exhaust | Standard or new | 5.450 - 5.460 mm | ||
| Service limit | 5.42 mm | |||
| Stem-to-guide clearance | Intake | Standard or new | 0.030 - 0.055 mm | |
| Service limit | 0.08 mm | |||
| Exhaust | Standard or new | 0.055 - 0.080 mm | ||
| Service limit | 0.11 mm |