Actually aluminum is more expensive than cast iron. But at one point you have to go with the flow, excuse the pun! The private car companies like Hudson, Nash, and the rest, lagged behind in the fifties, both with styling, and modern engines due to lack of funds, and it finally finished them. Customer's were buying modern V8 engines in Cadillacs, and Oldsmobiles. Even Lincoln jumped in 1952, Ford, 1954. It's funny how all the major companies know when to change style, engine, Transmission, something. It's like they all have moles working for the competition. Look at 1955 for example, all 3 switched over to modern bodies, modern 12 volt electrical, except Ford. It's move on, or get buried by the competition. More true than ever nowadays.
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