General Motors Cadillac Type V-63

The Cadillac V-63 is a large luxury automobile that was introduced in September 1923 by Cadillac as a 1924 model, replacing the previous Type 61. It used the GM C platform. It was replaced by the Cadillac Series 355 in 1931. It retained the name Cadillac V8 introduced with the previous generation Cadillac Type 51. The V-63 used an improved version of the L-head V8 engine that made Cadillac famous. The main innovation was a cross-plane crankshaft which improved balance and smoothness. This design required complex mathematical analysis, and was simultaneously patented by Peerless. Both companies agreed to share the innovation, which became a market distinction being able to exclusively offer a V8. For model year 1924, the Packard Eight straight-eight was now a competitor due to its reduce…

Source: Wikipedia (CC BY-SA).