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SOHC design (for a 1973 Triumph Dolomite Sprint) . The oldest configuration of overhead camshaft engine is the single overhead camshaft (SOHC) design. [1] A SOHC engine has one camshaft per bank of cylinders, therefore a straight engine has a total of one camshaft and a V engine or flat engine has a total of two camshafts (one for each cylinder bank).
The Quad 4 is the first domestic regular production DOHC four-cylinder engine wholly designed and built by GM, the only similar prior example being the Chevrolet Cosworth Vega, whose DOHC head was designed by Cosworth in England. In addition to the 2.3-liter DOHC Quad 4s, there was also a short-lived 2.3-liter SOHC variant called the "Quad OHC ...
While the terms DOHC and Twin-Cam are commonly used interchangeably, as said previously, Twin-Cams are not necessarily overhead. Additionally, in any engine with two banks (like a V-engine or a Boxer) a DOHC will actually have four camshafts. For an inline engine with two overhead cams, both terms apply.
As engine speeds increased through the 20th century, single overhead camshaft (SOHC) engines— where the camshaft is located within the cylinder head near the top of the engine— became increasingly common, followed by double overhead camshaft (DOHC) engines in more recent years. For OHC and DOHC engines, the camshaft operates the valve ...
The Ford I4 DOHC engine is a cast iron block 4-cylinder inline internal combustion engine with twin overhead camshafts, produced by the Ford Motor Company at Dagenham Engine Plant. It was initially available as a 2.0-litre 8-valve version, and later in 2.0 and 2.3-litre 16-valve versions from 1989 to the end of production of the MK2 Ford Galaxy ...
A. J. Foyt obtained the rights to Ford's turbocharged DOHC V-8 Indy engine, and it was subsequently rebadged and rebranded as the Foyt V-8 engine. The Foyt team further developed the powerplant, and ran the 161 cu in (2.64 L) Foyt V-8 engine from 1973 to 1978. A handful of other teams bought and ran Foyt V-8 engines during that timeframe as ...
At the introduction of the 24v DOHC engine in the Senator/Carlton/Omega, the 2.5 was enlarged to 2.6 litres. With a reworked 12-valve cylinder head and RAM induction it now produced 150 PS (110 kW; 148 hp). This engine was also fitted to southeast Asian export market versions of the Holden VP, VR, and VS Commodores between around 1992 and 1997 ...
The Mitsubishi Saturn or 4G3 engine is series of overhead camshaft (OHC) straight-four internal combustion engines introduced by Mitsubishi Motors and saw first service in the 1969 Colt Galant. Displacement ranges from 1.2 to 1.8 L (1,239 to 1,755 cc), although there was also a rare 2-litre (1,994 cc) inline-six version built from 1970 until 1976.