In 1929, Chevrolet introduced a new inline six-cylinder engine to replace the company’s capable four-cylinder foundation block. For the next 70 years, the “Otto” engine would be the building block for most of Chevrolet’s vehicles, including sedans, trucks, and more.
The inline six Otto went through three generations of development and was not fully replaced until fuel injection became common. Even then, the Otto had a fuel injected version in its last generation. It was finally replaced by the newer Atlas engine designs.
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