K20A3 Engine
| Valve guides | I.D. | Intake | Standard or new | 5.515 - 5.530 mm |
| Service limit | 5.55 mm | |||
| Exhaust | Standard or new | 5.515 - 5.530 mm | ||
| Service limit | 5.55 mm | |||
| Installed height | Intake | Standard or new | 15.2 - 16.2 mm | |
| Exhaust | Standard or new | 15.5 - 16.5 mm |
| Valve guides | I.D. | Intake | Standard or new | 5.515 - 5.530 mm |
| Service limit | 5.55 mm | |||
| Exhaust | Standard or new | 5.515 - 5.530 mm | ||
| Service limit | 5.55 mm | |||
| Installed height | Intake | Standard or new | 15.2 - 16.2 mm | |
| Exhaust | Standard or new | 15.5 - 16.5 mm |