Background
During the Prohibition Era in the United States (1920 -1933), bootleggers would modify their cars to make them go faster than the cars of the law enforcement agents and we should perhaps consider this to be the start of the hot rod movement.
The oldest known use of the term hot rod is from the 1930s, when car owners in Southern California would modify their cars and race them on the huge, dry lake beds located northeast of Los Angeles. By 1937, the Southern California Timing Association was formed in an effort to standardize the rules for speed racing events.
So why the term hot rod? It is said that it comes from replacing the camshaft of a vehicle with a ‘hotter’ version – a hot stick or hot rod. Sounds feasible to us!
During the early days, the cars used were often Fords, especially the Models T, A, and B. Roadsters were light, could be purchased fairly cheaply and were simple to modify. Weight saving was one of the main goals, though wheels and tyres were changed to improve traction and handling. Sometimes the engine was tuned or replaced with a more powerful one.
By the 1950s, hot rod enthusiasts started focusing on not just improving speed and handling, but also improving the appearance of their cars as well. Distinctive paint jobs became quite common.
Ford flathead V8 engines, introduced in 1932, were popular, but when Chevrolet introduced the small block overhead valve V8 in 1955 things began to change and by the 1960s the small-block Chevy V8 became the hot rod engine of choice.
The National Hot Rod Association, founded in 1951, is a good resource for more background information.







