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A Silver streak 8 in a 1949 Pontiac Streamliner - note the large intake silencer leading to an oil-bath air cleaner on the left side of the engine. The Pontiac straight-8 engine is an inline eight-cylinder automobile engine produced by Pontiac from 1933 to 1954. Introduced in the fall of 1932 for the 1933 models, it was Pontiac's most powerful ...
The straight-eight engine or inline-eight engine (often abbreviated as I8) is an eight-cylinder internal combustion engine with all eight cylinders mounted in a straight line along the crankcase. The type has been produced in side-valve , IOE , overhead-valve , sleeve-valve , and overhead-cam configurations.
The engine abandoned the flathead V8 offered in 1932 and reverted to the straight-eight architecture which was engineered internally by Pontiac, while the 3-speed synchromesh manual transmission was supplied by the new transmission factory at Muncie, Indiana. 1933 was also the first year that branch assembly plants were built while knock down ...
Pontiac was the last GM division to abandon its prewar inline eight engines as Oldsmobile and Cadillac had adopted modern OHV V8s in 1949 and Buick in 1953; Chevrolet had never has an inline eight. The 1953-54 Pontiacs had been meant for the division's new OHV 287 V8; however, Buick division managers succeeded in delaying its launch until 1955 ...
After outselling Oakland, Pontiac became the sole survivor of the two by 1932. In addition to the inline 6, Pontiac used the Oakland V8 for one year, 1932, debuting the Pontiac straight-8 engine in 1933. The two inline engines were used through 1954, when Pontiac unveiled its OHV Strato Streak V8 in 1955.
Unusually, Pontiac switched to the straight-eight for 1933 until it was replaced in 1954. [2] As the economy began to recover, by 1933, Pontiac had moved up to producing the least expensive cars available with straight-eight engines. This was achieved by using many components from the six-cylinder Chevrolet Master, such as the body. The ...
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View history; General ... Pages in category "Straight-eight engines" The following 18 pages are in this category, out of 18 total. ... Pontiac straight-8 engine; R.