Valve Dimensions
| Dimension | Intake valve (naturally aspirated and turbo engines) | Exhaust valve - naturally aspirated engine | Exhaust valve - turbo engine |
|---|---|---|---|
| Valve disc diameter | 38.30 mm | 33.00 mm | 33.00 mm |
| Valve stem diameter | 5.92 mm | 5.92 mm | 5.92 mm |
| Overall length (from valve disc to valve pressure area) | 107.70 mm | 108.20 mm | 108.20 mm |
| A ngle at valve seat area | 45° | 45° | 45° |
| Weight | 56.8 gr. | 48.8 gr. | 46.7 gr. (lighter than in naturally aspirated engine because of sodium filling) |