1975
4 configurations
- 300 cu. in. / cylinder or rotor code 6 / fuel system 1 / catalyst X / Federal January 1975
- 300 cu. in. / cylinder or rotor code 6 / fuel system 1 / catalyst X / California January 1975
- 351 cu. in. / cylinder or rotor code 8 / fuel system 2 / catalyst unmarked / Federal January 1975
- 351 cu. in. / cylinder or rotor code 8 / fuel system 2 / catalyst X / California January 1975