Buick Master Six

The Buick Master Six was an automobile built by Buick from 1925 to 1928 and shared the GM B platform with Oldsmobile. Previously, the company manufactured the Buick Six that used the overhead valve six-cylinder 242ci engine in their high-end cars, and the Buick Four for smaller, less-expensive cars. Starting with 1925, they dropped the four-cylinder engine and designed a small six, which they called the Buick Standard Six, to replace that end of the market. They coined the name "Master Six" for the high-end cars, now powered by the 255ci engine released the year before. As GM was sharing platforms and technology within their divisions, the Master Six was related to the Oldsmobile Model 30 with similar wheelbase and engine sizes. Buick had developed a market reputation as being a conservative luxury car, while Cadillac was much more flamboyant. The last Emperor of China Puyi bought 2 1924 Master Six and started the trend of being China's most popular car.[1]

History
1925 Buick Six Model 50 Sedan

Buick named their six-cylinder cars "Buick Six" from 1916 through 1924, and in 1925, divided them into Standard Six and Master Six.[2] The Master 6 was renamed Series 121 and 129 in 1929 and Series 40 in 1930. All were powered by the overhead valve Buick Straight-6 engine, with multiple body styles, and starting in 1926 used the newly established GM B platform, which it shared with Oldsmobile F-Series. Although Buick produced mostly four-cylinder cars in the teens and early '20s, as it had been doing, the new six-cylinder cars became more common. Buick first made six-cylinder cars in 1914, with a 331-cubic-inch engine, which was originally a racing engine, later used in limited production as the Series 50. The 331 engine was dropped in 1916 and replaced with the much smaller 40 series engine, starting with a 224-cubic-inch in 1916 and 1917, the 242 engine from 1918, increased to 255 in 1924, increased again to 274 for 1926 through 1928. The engine was increased again to 309 for the Series 121 and 129 in 1929 and Series 40 in 1930, after which all six-cylinder engines were suddenly dropped and all models of Buick were equipped with the legendary Straight 8, starting in 1931 and for decades thereafter.

The Master Six was Buick's high-end offering, above the Standard Six. It was also manufactured from knock-down kits at GM's short-lived Japanese factory at Osaka Assembly in Osaka, Japan. It was an all-new platform joining the smaller Model 10, and was replaced by the Buick Super, and the Buick Roadmaster.

Series 50 (1930–1935)

Originally the Series 50 had a 331.4 cu in (5,431 cc) Buick Straight-6 engine developing 99 bhp of power at 2,800 rpm, and Buick manufactured 28,204 cars. In 1931 the model remained almost unchanged, aside from minor appearance changes. Optionally, the model was equipped with the new 220.7 cu in (3,617 cc) Buick Straight-8 engine and 77 hp. With the temporary disappearance of the Series 40, Series 50 became the entry level model for Buick.

In 1932 the straight eight engine displacement increased to 230.4 cu in (3,776 cc), producing 82.5 bhp. In 1933, the aesthetics of the car was completely redesigned. The power delivered by the engine was increased again and now it was up to 86 bhp, and in 1934, the model power increased to 88 hp. Buick re-introduced the Series 40, which once again became the entry level model. In 1935 the Series 50 remained unchanged and the following year went out of production, having produced 127,416 examples. The model was reintroduced in 1940 under the name "Super".

  • 1927 Buick Cabriolet
  • 1928 Buick Sedan
  • 1929 Buick Series 129-49 Touring Sedan
  • 1932 Series 50 coupe
  • 1933 Buick
  • 1934 Buick
  • 1935 Buick
  • 1936 Buick


The Master Six was also sold with a junior model, called the Standard Six, later the Series 115, and Series 116. They were replaced with the Series 40.

See also

References
  • Slauson, H. W.; Howard Greene (1926). "Leading American Motor Cars". Everyman's Guide to Motor Efficiency. New York: Leslie-Judge Company.
  • Kimes Beverly, Henry Clark, Standard Catalog of American Cars 1805–1942, Iola, Krause Publications Inc, 1996, ISBN 978-0-87341-428-9
Specific
  1. "Buick's China Connection". Cigar Aficonado. Retrieved 14 December 2020.
  2. p. 86, "Seventy Years of Buick" by George H. Dammann, Crestline Publishing, 1973


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