| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes |
| Replace |
| Without Valve Job |
| S.O.H.C. | 8.8 | 6.3 | B | Includes: Clean Carbon And All Necessary Adjustments. |
| 944 Turbo | 12.3 | 8.8 | B | Includes: Clean Carbon And All Necessary Adjustments. |
| D.O.H.C. |
| 944S |
| Without PS | 10.6 | 7.6 | B | Includes: Clean Carbon And All Necessary Adjustments. |
| With PS | 10.9 | 7.8 | B | Includes: Clean Carbon And All Necessary Adjustments. |
| With Valve Job |
| S.O.H.C. | 9.7 | 6.9 | A | Includes: R&R Cylinder Head, Grind Or Renew Valves, Transfer All Necessary Components & Make All Adjustments. |
| 944 Turbo | 13.2 | 9.4 | A | Includes: R&R Cylinder Head, Grind Or Renew Valves, Transfer All Necessary Components & Make All Adjustments. |
| D.O.H.C. |
| 944S |
| Without PS | 11.5 | 8.2 | A | Includes: R&R Cylinder Head, Grind Or Renew Valves, Transfer All Necessary Components & Make All Adjustments. |
| With PS | 11.8 | 8.4 | A | Includes: R&R Cylinder Head, Grind Or Renew Valves, Transfer All Necessary Components & Make All Adjustments. |