K20A3 Engine
| Valve seats | Width | Intake | Standard or new | 1.25 - 1.55 mm |
| Service limit | 2.00 mm | |||
| Exhaust | Standard or new | 1.25 - 1.55 mm | ||
| Service limit | 2.00 mm | |||
| Stem installed height | Intake | Standard or new | 40.8 - 41.0 mm | |
| Exhaust | Standard or new | 54.6 - 54.8 mm |