Piston Ring: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| S.O.H.C. | ||||
| Without PS | 16.0 | 11.4 | A | Includes: R&R Cylinder Head & Oil Pan, Hone Cylinder Walls & Plastigauge Bearings. |
| With PS | 17.4 | 12.4 | A | Includes: R&R Cylinder Head & Oil Pan, Hone Cylinder Walls & Plastigauge Bearings. |
| 944 Turbo | 25.6 | 18.3 | A | Includes: R&R Cylinder Head & Oil Pan, Hone Cylinder Walls & Plastigauge Bearings. |