The interior trim color code is a 3-digit number. Those not checked under Bucket are bench seat styling.
There may be additional interior codes for Oshawa-built Chevelles as I have no source to reference.
Atlanta, Framingham, and Kansas City also included a -A or -B to denote bench or bucket seat. When optional headrests were ordered the -A or -B gave way to -S for bucket seats and -E for bench seat; Baltimore, Fremont, and Oshawa did not.
| Code | Color | Bucket |
| 704 | Medium Fawn Raeburn Cloth, Imitation Leather | |
| 706 | Medium Fawn Rideau Cloth, Imitation Leather | |
| 707 | Light Fawn Pattern Imitation Leather | |
| 708 | Light Fawn Renville Cloth, Imitation Leather | |
| 709 | Medium Fawn, Light Fawn Imitation Leather | |
| 710 | Medium Fawn, Light Fawn Imitation Leather (El Camino only) | |
| 711 | Medium Fawn, Light Fawn Imitation Leather (El Camino only) | x |
| 712 | Medium Fawn, Light Fawn Imitation Leather | x |
| 724 | Medium Blue Raeburn Cloth, Imitation Leather | |
| 726 | Medium Blue Rideau Cloth, Imitation Leather | |
| 727 | Medium Blue Pattern Imitation Leather | |
| 728 | Dark Blue Renville Cloth, Medium Blue Imitation Leather | |
| 729 | Dark Blue, Medium Blue Imitation Leather | |
| 730 | Dark Blue, Medium Blue Imitation Leather | |
| 731 | Dark Bright Blue, Medium Bright Blue Imitation Leather | x |
| 732 | Medium Bright Blue Imitation Leather | |
| 742 | Medium Red Raeburn Cloth, Imitation Leather | |
| 744 | Medium Red Rideau Cloth, Imitation Leather | |
| 745 | Medium Red Pattern Imitation Leather | |
| 746 | Medium Red Renville Cloth, Imitation Leather | |
| 747 | Medium Red Imitation Leather | |
| 748 | Medium Red Imitation Leather (El Camino only) | |
| 749 | Medium Red Imitation Leather (El Camino only) | x |
| 750 | Medium Red Imitation Leather | x |
| 760 | Black Imitation Leather | |
| 761 | Black Imitation Leather | |
| 762 | Black Imitation Leather (El Camino only) | x |
| 763 | Black Imitation Leather | X |
| 775 | Dark Turquoise Renville Cloth, Medium Turquoise Imitation Leather | |
| 776 | Dark Turquoise, Medium Turquoise Imitation Leather | |
| 777 | Dark Turquoise, Medium Turquoise Imitation Leather | x |
| 787 | Medium Aztec Bronze Imitation Leather | |
| 790 | Medium Aztec Bronze Imitation Leather | x |
| 797 | Ivory Imitation Leather | X |
| 798 | Ivory Imitation Leather | |