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| Description | Standard |
| Normal cylinder head height (H) | 129.4 (5.09) |
| Description | Limit |
| Head surface distortion | 0.1 (0.004) |
| Description | Standard |
| Spark plug tube installation height | 41.2 - 42.2 mm (1.622 - 1.661 in) |
) | ||
| Valve head diameter (D) | Intake | 35.5 - 35.8 (1.398 - 1.409) |
| Exhaust | 30.3 - 30.6 (1.193 - 1.205) | |
| Valve length (L) | Intake | 101.72 (4.0047) |
| Exhaust | 102.78 (4.0464) | |
| Valve stem diameter (d) | Intake | 5.465 - 5.480 (0.2152 - 0.2157) |
| Exhaust | 5.455 - 5.470 (0.2148 - 0.2154) | |
| Valve seat angle α | Intake | 45°15′ - 45°45′ |
| Exhaust | ||
| Valve margin (T) | Intake | 1.1 (0.043) |
| Exhaust | 1.4 (0.055) | |
| Free height standard | 48.20 (1.898) | |
| Installation height | 35.96 mm (1.4157 in) | |
| Installation load | 153 N - 173 N (15.6 kg - 17.6 kg, 34.4 lb - 38.9 lb) | |
| Height during valve open | 25.76 mm (1.0142 in) | |
| Load with valve open | 320 N - 360 N (32.6 kg - 36.7 kg, 71.9 lb - 80.9 lb) | |
| Identification color | Purple | |
| Out-of-square | 2.1 mm (0.083 in) | |
| Description | Standard |
| Valve oil seal installation height (A) | 11.8 - 12.4 (0.465 - 0.488) |
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| Description | Standard | Service | |
| Valve guide | Outer diameter | 9.523 - 9.534 (0.3749 - 0.3754) | 9.723 - 9.734 (0.3828 - 0.3832) |
| Inner diameter (Finished size) | 5.500 - 5.518 (0.2165 - 0.2172) | ||
| Cylinder head valve guide hole diameter | 9.475 - 9.496 (0.3730 - 0.3739) | 10.175 - 10.196 (0.4006 - 0.4014) | |
| Interference fit of valve guide | 0.027 - 0.059 (0.0011 - 0.0023) | ||
| Standard | |||
| Valve guide clearance (Standard) | Intake | 0.020 - 0.053 (0.0008 - 0.0021) | |
| Exhaust | 0.030 - 0.063 (0.0012 - 0.0025) | ||
| Valve guide clearance (Limit) | Intake | 0.08 (0.003) | |
| Exhaust | 0.09 (0.004) | ||
| Projection length (L) | Intake | 10.1 - 10.3 (0.398 - 0.406) | |
| Exhaust | 10.0 - 10.4 (0.394 - 0.409) | ||
) | |||
| Description | Standard | Service | |
| Cylinder head seat recess diameter (D) | Intake | 36.500 - 36.516 (1.4370 - 1.4376) | 37.000 - 37.016 (1.4567 - 1.4573) |
| Exhaust | 31.500 - 31.516 (1.2402 - 1.2408) | 32.000 - 32.016 (1.2598 - 1.2605) | |
| Valve seat interference fit | Intake | 0.081 - 0.113 (0.0032 - 0.0044) | |
| Exhaust | 0.084 - 0.116 (0.0033 - 0.0046) | ||
| Valve seat outer diameter (d) | Intake | 36.597 - 36.613 (1.4408 - 1.4415) | 37.097 - 37.113 (1.4605 - 1.4611) |
| Exhaust | 31.600 - 31.616 (1.2441 - 1.2447) | 32.100 - 32.116 (1.2638 - 1.2644) | |
| Diameter (d1)*1 | Intake | 33.5 (1.319) | |
| Exhaust | 28 (1.10) | ||
| Diameter (d2)*2 | Intake | 34.8 - 35.3 (1.370 - 1.390) | |
| Exhaust | 29.6 - 30.1(1.165 - 1.185) | ||
| Angle (α1) | Intake | 59° - 61° | |
| Exhaust | 59° - 61° | ||
| Angle (α2) | Intake | 88°45’ - 90°15’ | |
| Exhaust | 88°45’ - 90°15’ | ||
| Angle (α3) | Intake | 119° - 121° | |
| Exhaust | 119° - 121° | ||
| Contacting width (W)*3 | Intake | 0.99 - 1.35 (0.0390 - 0.0531) | |
| Exhaust | 1.19 - 1.55 (0.0469 - 0.0610) | ||
| Valve seat height (h) | 5.9 - 6.0 (0.232 - 0.236) | 5.0 - 5.1 (0.197 - 0.201) | |
| Cylinder head seat recess depth (H) | 6.0 (0.236) | ||