Section 20 (5.7L Engine (Service Information)): Specifications: Specifications: Valves
WARNING: This page is about a different car, the 2011 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
VALVES
| DESCRIPTION | SPECIFICATION | |
|---|---|---|
| Metric | Standard | |
| Face Angle | 45.0° - 45.5° | |
| Head Diameter | ||
| Intake | 50.67 - 50.93 mm | 1.99 - 2.01 in. |
| Exhaust | 39.27 - 39.53 mm | 1.55 - 1.56 in. |
| Length (overall) | ||
| Intake | 123.38 - 123.76 mm | 4.857 - 4.872 in. |
| Exhaust | 120.475 - 120.855 mm | 4.743 - 4.758 in. |
| Stem Diameter | ||
| Intake | 7.935 - 7.953 mm | 0.312 - 0.313 in. |
| Exhaust | 7.932 - 7.950 mm | 0.312 - 0.313 in. |
| Stem - to - Guide Clearance | ||
| Intake | 0.022 - 0.065 mm | 0.0008 - 0.0025 in. |
| Exhaust | 0.025 - 0.065 mm | 0.0009 - 0.0025 in. |
| Valve Lift (@ zero lash) | ||
| Intake | 12.0 mm | 0.472 in. |
| Exhaust | 11.70 mm | 0.460 in. |