Engine Identification Code
Engine codes are a suffix of Engine Identification Number. Number is stamped on pad located at right side of cylinder block, just rear of distributor. Engines on 1979 models can also be identified by 3rd character of Vehicle Identification Number.
1975 ENGINE IDENTIFICATION CODES
| Application | Man. Trans. | Auto. Trans. |
|---|---|---|
| 250" | TTF, TTK, TTM, TTS, TTU | TTL, TTR, TTT, TTW |
| 292" | TUF, TUM, TUH | TUJ, TUK, TUL |
1976 ENGINE IDENTIFICATION CODES
| Application | Man. Trans. | Auto. Trans. |
|---|---|---|
| 250" | TBA, TBC, TAT, TAA | TBB, TBD, TAS |
| 292" | THR, THH | THK, THC, THT, THU |
1977 ENGINE IDENTIFICATION CODES
| Application | Man. Trans. | Auto. Trans. | |
|---|---|---|---|
| 250" | |||
| Calif. | TBA, TBC, TBJ, TAT | TBD, TAS, TBK | |
| Federal | TAA, TBA, TAT, TBF | TB, TBH, TAS | |
| 292" | |||
| Calif. | THR | THT, THU | |
| Federal | THH | THK, THL | |
1978 ENGINE IDENTIFICATION CODES
| Application | Man. Trans. | Auto. Trans. | |
|---|---|---|---|
| 250" | |||
| Calif. | TCL, TCR | TCM, TCS | |
| Federal | TAC, TAF, TAR, TAC, TAF, TAR | TAB, TAH, TAM, TAS, TBB | |
| 292" | |||
| Calif. | THS | ..... | |
| Federal | THJ, THM, THY, TUF | THC, THF, TUH | |
1979 ENGINE IDENTIFICATION CODES
| Application | Man. Trans. | Auto. Trans. | ||
|---|---|---|---|---|
| 250" | ||||
| C10 & C20 | ||||
| Federal | TAJ | TAK | ||
| Calif. | TAA, TAW | TAD, TAX | ||
| G10-30 | ||||
| Federal | TAL | TAS | ||
| Calif. | TAT | TAD, TDC, TDW | ||
| K10 Federal | TAJ | TAK | ||
| 292" | ||||
| P10-30 | ||||
| Federal | ..... | TH8, THB, THH | ||
| Calif. | ..... | THH | ||
| High Alt. | ..... | THH | ||
| C30 & K30 | THA | THH | ||