Intake Valves & Exhaust Valves
VALVES
| Description | Specification | |
|---|---|---|
| Metric | Standard | |
| Face Angle | 45.25° ± 0.25° | |
| Head Diameter - Intake | 39.0 ± 0.100 mm | 1.535 ± 0.004 in. |
| Head Diameter - Exhaust | 30.0 ± 0.100 mm | 1.181 ± 0.004 in. |
| Length-Intake (Overall) | 109.426 ± 0.23 mm | 4.308 ± 0.009 in. |
| Length-Exhaust (Overall) | 111.525 ± 0.23 mm | 4.391 ± 0.009 in. |
| Stem Diameter - Intake | 5.968 ± 0.009 mm | 0.2350 ± 0.0004 in. |
| Stem Diameter - Exhaust | 5.961± 0.009 mm | 0.2347 ± 0.0004 in. |
| Stem-to-Guide Clearance - Intake (New) | 0.023 - 0.061 mm | 0.0009 - 0.0024 in. |
| Stem-to-Guide Clearance - Exhaust (New) | 0.030 - 0.068 mm | 0.0012 - 0.0027 in. |
| Stem-to-Guide Clearance-Intake (Max., Rocking Method) | 0.29 mm | 0.011 in. |
| Stem-to-Guide Clearance - Exhaust (Max., Rocking Method) | 0.37 mm | 0.015 in. |
| Valve Stem Tip Height* - Intake | 46.3 - 47.4 mm | 1.822 - 1.866 in. |
| Valve Stem Tip Height* - Exhaust | 48.73 - 49.83 mm | 1.919 - 1.962 in. |
| *Valve tip to aluminum spring seat boss | ||