Engines
| Model | Year | Engine | Chassis number | Output | Capacity |
| P1800 | 1961-62 | B18 | 1-6000 | 100 SAE | 1778 |
| 1800S | 1963 | B18 | 6001-8000 | 100 SAE | 1778 |
| 1800S | 1964 | B18 | 8001-12500 | 108 SAE | 1778 |
| 1800S | 1965 | B18 | 12501-16500 | 108 SAE | 1778 |
| 1800S | 1966 | B18 | 16501-21000 | 115 SAE | 1778 |
| 1800S | 1967 | B18 | 21001-25500 | 115 SAE | 1778 |
| 1800S | 1968 | B18 | 25501-28300 | 115 SAE | 1778 |
| 1800S | 1969 | B20 | 28301-29993 | 118 SAE | 1986 |
| 1800E | 1970 | B20 | 29994-32792 | 130 SAE | 1986 |
| 1800E | 1971 | B20 | 32793-37542 | 130 SAE | 1986 |
| 1800E | 1972 | B20 | 37543-39407 | 135 SAE | 1986 |
| 1800ES | 1972 | B20 | 1-3070 | 135 SAE | 1986 |
| 1800ES* | 1973 | B20 | 3071-8078 | 135 SAE | 1986 |