The Buick Straight-8 engine was produced from 1931 to 1953 and sold in Buick automobiles. Like many American automobile makers, Buick adopted the straight-8 engine in 1931 as a more powerful alternative to the previous inline-6 engines. However, unlike most other car makers at the time, the Buick engine was an overhead valve design. The engine was sold in different displacements depending on the model of car and the year. The last year for Buick's straight-8 was 1953, when the new V8 took over.