This article focuses on the last American V12 engine used in a car. A GM V12 was used more recently in heavy trucks of the 1960s developed from two V6 blocks. Produced between 1946 and 1948 ...

During this time, American legacy automaker General Motors debuted its monstrous 11.5-liter V12 engine for heavy-duty trucks, and it remains a giant even by modern standards. How big? It's the ...