Camshaft: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Engine Model 4G63 | ||||
| With Turbo | ||||
| One | 3.7 | 2.9 | B | Includes: R&I Valve Cover. |
| Both | 4.0 | 3.0 | B | Includes: R&I Valve Cover. |
| Engine Model 420A | ||||
| One | 3.7 | 3.1 | B | Includes: R&I Valve Cover. |
| Both | 4.0 | 3.2 | B | Includes: R&I Valve Cover. |
| NOTE | ||||
| With AC, Add | 0.5 | 0.3 | B |