Editing Overhead camshaft engine (section)

=== 1919–1944 ===
[[File:1933 Bugatti Type 59 Grand Prix engine.jpg|right|thumb |1933 [[Bugatti Type 59]] straight-eight grand prix racing engine ]]
An early American overhead camshaft production engine was the SOHC straight-eight engine used in the 1921–1926 [[Duesenberg Model A]] luxury car.<ref>{{cite book| last = Mueller| first = Mike| year = 2006| chapter = Chapter 6 - Chariot of the Gods Duesenberg Straight Eight| chapter-url ={{Google books|69qYnoohrMYC|American Horsepower: 100 Years of Great Car Engines|page= 49|plainurl= yes}}| title  = American Horsepower 100 Years of Great Car Engines| url ={{Google books|69qYnoohrMYC|American Horsepower: 100 Years of Great Car Engines|page=51|plainurl= yes}}| location = St. Paul, MN USA| publisher = Motorbooks| pages = 51| isbn = 978-0-7603-2327-4| lccn = 2006017040| access-date =2015-02-02}}</ref>

In 1926, the [[Sunbeam 3 litre Super Sports]] became the first production car to use a DOHC engine.<ref name=Autocar197710>{{cite journal| journal = [[Autocar (magazine)|Autocar]] |volume =  147 (nbr 4221)|title =Talking of sports cars: Sunbeam three-litre| pages = 69–71| date = 1 October 1977}}</ref><ref>{{cite book |last1=Georgano |first1=G.N. |title=Cars: Early and Vintage, 1886-1930 |date=1985 |publisher=Grange-Universal |location=London}}</ref> 

In the United States, Duesenberg added DOHC engines (alongside their existing SOHC engines) with the 1928 release of the [[Duesenberg Model J]], which was powered by a DOHC straight-eight engine. The 1931–1935 [[Stutz_Motor_Company#Stutz_Motor_Car_Company_of_America,_Inc.|Stutz DV32]] was another early American luxury car to use a DOHC engine. Also in the United States, the DOHC [[Offenhauser]] racing engine was introduced in 1933. This inline-four engine dominated North American open-wheel racing from 1934 until the 1970s.

Other early SOHC automotive engines were the 1920–1923 [[List_of_Wolseley_automobiles#Inter-war_cars_1920_to_1940|Wolseley Ten]], the 1928-1931 [[MG 18/80]], the 1926–1935 [[Singer_Motors#Models|Singer Junior]] and the 1928–1929 [[Alfa_Romeo_6C#6C_1500_(1927–1929)|Alfa Romeo 6C Sport]]. Early overhead camshaft motorcycles included the 1925–1949 [[Velocette#Velocette_'K'_series|Velocette K Series]] and the 1927–1939 [[Norton CS1]].