1968-69 Models: Notes
| Code | Displ. & Carb. | Compr. Ratio | Block No. |
|---|---|---|---|
| A | 170" 6 1 Bbl. | 8.5:1 | G170 |
| B | 225" 6 1 Bbl. | 8.4:1 | RG225 |
| D | 273" V8 2 & 4 Bbl. | 8.8:1 | LA273 |
| F | 318" V8 2 Bbl. | 9.2:1 | LA318 |
| F | 318" V8 4 Bbl. | 10.5:1 | LA318 |
| P | 340" V8 2 Bbl. | 9.2:1 | LA340 |
| P | 340" V8 4 Bbl. | 10.5:1 | LA340 |
| G | 383" V8 2 Bbl. | 9.2:1 | LA383 |
| H | 383" V8 4 Bbl. H.P. | 10.5:1 | LA383 |
| J | 426" V8 2-4 Bbl. | 10.25:1 | LA426 |
| K | 440" V8 4 Bbl. | 10.1:1 | LA440 |