1972 also saw the end of the high performance 440 Six-Pack engine (although a very small amount of 1972 Chargers came with this engine). The 1972 Charger bowed with a new "Rallye" option to replace the former R/T version. The 440 engines were still available but now had to use the net horsepower rating instead of the gross horsepower rating. This would cause their horsepower ratings to go down substantially. After the 1972 model year no 440 four speed cars were built and the use of the pistol grip 4 speeds were reduced to 400 cubic inches or less.
