Valve Spring: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| NOTE | ||||
| With AC, Add | 0.2 | 0.2 | B | |
| Without X-Runner | ||||
| Both Banks | 23.6 | 19.5 | B | Includes: R&I Cylinder Head. |
| With X-Runner | ||||
| Both Banks | 28.1 | 25.9 | B | Includes: R&I Cylinder Head. |