Engine Identification
Engine identification number is stamped on engine crankcase (blower fan support), near oil temperature sensor.
1974 ENGINE CODES
| Application | Code |
|---|---|
| 911 | 1 |
| 911S & Carrera | 3 |
7975-76 ENGINE CODES
| Application | Code |
|---|---|
| 911S & Carrera Federal | 4 |
| Calif. | 5 |
| Turbo Carrera | 930/51 |
1977 ENGINE CODES
| Application | Code | |
|---|---|---|
| 911S | ||
| Man. Trans. | 911/85 | |
| Auto. Trans. | 911/90 | |
| Turbo Carrera | 930/53 | |
1978 ENGINE CODES
| Application | Code | |
|---|---|---|
| 911SC | ||
| Federal | 628 | |
| Calif. | 658 | |
| Turbo | 688 | |
1979 ENGINE CODES
| Application | Code | |
|---|---|---|
| 911SC | ||
| Federal | 629 | |
| Calif. | 659 | |
| Turbo | 689 | |