Engine Identification
First 6 digits of engine identification number, located on tag attached to engine crankcase at left rear side of block (at front on 6.9), identify engine as follows.
7974-76 ENGINE CODES
| Application | Code |
|---|---|
| 450SE | 117.983 |
| 450SEL | 117.983 |
| 450SL | 117.982 |
| 450SLC | 117.982 |
7977-79 ENGINE CODES
| Application | Code |
|---|---|
| 450SEL | 117.986 |
| 450SL | 117.985 |
| 450SLC | 117.985 |
| 6.9 | 100.985 |