Quote:
Originally Posted by Kenny Camaro
In 1972, our favorite big brother, the United States government required that all cars manufactured in the US have a maximum compression ratio of 8.75 to 1, as to be able to run unleaded gasoline. In 1971 GM started detuning there entire fleet of automobiles. Chrysler and Ford did not. In 1972 'big brother' threatened heavy fines and penalties if Ford and Chrysler did not comply. 1973 the Big three and AMC for that matter, had all complied with the compression requirements and pollution control requirements. This effectively ended the first muscle car era. Now with fleet gas mileage requirements coming in the mid 2020's, the current power craze we are blessed with will be changing. Chrysler announced that 2019 will be the last model year for the v-8 Hemi production. And so it begins ......  |
Ah, but also in 1970, GM removed the corporate ban on engines larger than 400 cubic inches in intermediate cars.