>>13756218It was definitely, heavily endorsed by Dodge. The director really loved their cars and sought them out because he felt the Challenger was the best muscle car on the market.
You are right, though. The 440 was a vastly superior engine in everything short of stock car racing. It even outperformed the 426 at the drag strip in most applications. The Elephant was a beast of an engine, and there is a reason it continues to see use in cars today, but it was a bad choice for movie cars.