Oldsmobile straight-6 engine

The was used by the Oldsmobile Series 23 between 1910 and 1912. It used a T-head engine configuration and made 60 bhp. In 1911 the displacement increased to while remaining at 60 bhp. ==380==

The was used by the Oldsmobile Model 53 between 1913 and 1915, and made 50 bhp. ==177==

The was used by the Oldsmobile Model 37 between 1917 and 1921 and made 40 bhp. ==169==

The was used by the Oldsmobile Model 30 between 1923 and 1926. It used a 2 3/4" bore and 4 3/4" stroke and made 40 bhp at 2600 RPM. ==185==

The was used by the Oldsmobile F-Series for the 1927 model year only and it was basically an over-bored 169. It used a 2 7/8" bore and 4 3/4" stroke and made 44 bhp at 2600 RPM. ==198==

The was used by the Oldsmobile F-Series between 1928 and 1931 in various power outputs. It used a 3 3/16" bore and 4 1/8" stroke, had a compression ratio of 5.2:1 and when released in 1928 made 55 bhp at 2700 RPM. In 1929 the intake was upgraded from 1" to a 1 1/4" carburetor and power increased to 61 bhp at 3000 RPM. 1931 saw another increase in power to 65 bhp at 3350 RPM. ==213==

The was used by the Oldsmobile F-Series between 1932 and 1936 and also by GMC in their 1936 T-14 and T-16 trucks. It used a 3 5/16" bore and 4 1/8" stroke and on its introduction in 1932 had a compression ratio of 5.3:1 and made 74 bhp at 3200 RPM. For 1933 the capacity was increased to 221 but reverted to the original displacement the following year, with a higher compression ratio of 5.7:1 made 84 bhp at 3200 RPM. ==221==

The was used by the Oldsmobile F-Series for one year in 1933 and then reverted to using the 213. It had a 3 3/8" bore and 4 1/8" stroke. This 1933 engine was the first Olds to use removable "shell" bearings in lieu of the earlier poured in place babbit bearings. ==230==

The was used by the Oldsmobile F-Series, Oldsmobile Series 60 and Oldsmobile Series 70 between 1937 & 1940 and also GMC in their 1937 & 1938 T-16, F-16, T-16H and F-16H trucks. It used a 3 7/16" bore and 4 1/8" stroke. ==216==

The was used by Oldsmobile for only one year in 1939 for the 60 series vehicle. It was basically a de-stroked 230 and used the same 3 7/16" bore but a 3 7/8" stroke. ==238==

The 238 was used by the Oldsmobile Series 60 and Oldsmobile Series 70 between 1941 and 1948. It used a 3 1/2" bore and 4 1/8" stroke ==257==

The 257 was used only by the Oldsmobile 76 during the 1949-50 model years. It used a 3 17/32" and 4 3/8" stroke. These engines were known as the "Big Six" and had this description cast into the cylinder head. ==See also==