| Checker | Marathon | 1968 | Base Sedan 4-Door | 3.8L 230Cu. In. l6 GAS Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Sedan 4-Door | 3.8L 3769CC 230Cu. In. l6 GAS OHV Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Sedan 4-Door | 5.0L 307Cu. In. V8 GAS Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Sedan 4-Door | 5.0L 5031CC 307Cu. In. V8 GAS OHV Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Sedan 4-Door | 5.3L 5358CC 327Cu. In. V8 GAS OHV Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Wagon 4-Door | 3.8L 230Cu. In. l6 GAS Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Wagon 4-Door | 3.8L 3769CC 230Cu. In. l6 GAS OHV Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Wagon 4-Door | 5.0L 307Cu. In. V8 GAS Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Wagon 4-Door | 5.0L 5031CC 307Cu. In. V8 GAS OHV Naturally Aspirated | |
| Checker | Marathon | 1968 | Base Wagon 4-Door | 5.3L 5358CC 327Cu. In. V8 GAS OHV Naturally Aspirated | |