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The J-2 engine also had a slightly thinner head gasket, raising compression to 10.0:1. It was advertised with gross power and torque ratings of 312 hp (233 kW) at 4600 rpm and 415 lb⋅ft (563 N⋅m) at 2800 rpm. Oldsmobile charged $83 for the J-2 option with the three-speed manual (or in the 98), [7] $314 with the automatic. [8]
Oldsmobile produced a straight-6 automobile engine from 1923 to 1950. It was a conventional side-valve engine of varying capacities and at stages was shared with GMC . Although the engines changed from year to year there were basically 5 series of Oldsmobile side-valve 6 cylinder engines over the 27 years of production, 1923 to 1927, 1928 to ...
The engine was produced from 1951 to 1965 with a total of 21,170 built. Many J57 models shipped since 1954 contained 7-15% of titanium, by dry weight. Commercially pure titanium was used in the inlet case and low-pressure compressor case, whereas the low-pressure rotor assembly was made up of 6Al-4V titanium alloy blades, discs and disc spacers.
The GMC straight-6 engine was a series of gasoline-powered straight-six engines introduced in the 1939 model year by the GMC Trucks division of General Motors. Prior to the introduction of this new engine design GMC trucks had been powered by straight-six engines designed by the Buick , Pontiac and Oldsmobile divisions of GM.
Oldsmobile was chosen to introduce the Hydra-Matic for two reasons: economies of scale—Oldsmobile produced more cars than Cadillac and Buick at the time, thus providing a better test base—and to protect the reputation of Cadillac and Buick in case of a market failure of the new transmission.
Prior to developing its own engines, smaller GMC trucks used the Pontiac V8 engine. They used the Pontiac 287-cubic-inch (4.7 L) engine for 1955 and 316-cubic-inch (5.2 L) engine in 1956, but advertised the engines as the "GMC 288" and "GMC 316". They used Pontiac's 347-cubic-inch (5.7 L) in 1957.
1948 Oldsmobile Straight-8 engine Oldsmobile inline 8 engine at the R. E. Olds Transportation Museum. Oldsmobile produced a straight-8 engine in the 1930s and 1940s. This was the company's top engine choice from 1932 until the 1949 introduction of the overhead valve Rocket V8, and was briefly exclusive to the Oldsmobile L-Series.
One XT57 (PT5), a turboprop development of the J57, was installed in the nose of a JC-124C (BuNo 52-1069), and tested in 1956. [3] [4]Rated at 15,000 shaft horsepower (11,000 kW), the XT57 was the most powerful turboprop engine in existence at the time, [5] and it remains the most powerful turboprop ever built in the United States. [2]