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The Chevrolet Cosworth Vega is a subcompact four-passenger automobile produced by Chevrolet for the 1975 and 1976 model years. It is a limited-production version of the Chevrolet Vega , with higher performance.
The Cosworth Vega engine was produced in 1975 and 1976 using the 2300 engine block. The engine was de-stroked to 3.16 inches (80 mm) giving 2.0 L; 121.7 cu in (1,994 cc), with a 16-valve aluminum cylinder head, double overhead cams ( DOHC ), forged components and solid lifters .
The Chevrolet Vega is a subcompact automobile that was manufactured and marketed by GM's Chevrolet division from 1970 to 1977. Available in two-door hatchback, notchback, wagon, and sedan delivery body styles, all models were powered by an inline four-cylinder engine designed specifically for the Vega, with a lightweight, aluminum alloy cylinder block.
An advanced design for the time, the Cosworth Vega engine used dual overhead camshafts, 4 valves per cylinder, and electronic fuel injection; in total, 5000 engines were assembled for 1975. [5] For 1975, the introduction of the Chevrolet Monza saw the introduction of V8 engines to H platform (not offered in the Vega and Astre).
1976 Chevrolet Cosworth Vega Cosworth Vega 122 cu in DOHC L4-110 hp. In the US, the name has also appeared in the title of a road car (well before it did in Europe) as the Cosworth version of the Chevrolet Vega. Only 3,508 1975 and 1976 Cosworth Vegas were produced from March 1975 through 1976.
The Monza 2+2 and its Buick and Oldsmobile variants feature GM's first use of a torque arm rear suspension, also adopted for the 1975 Cosworth Vega introduced mid-1975, and later, all 1976–1977 Vegas and Pontiac Astres.
The Pontiac Astre is a subcompact automobile that was marketed by Pontiac as a rebadged variant of the Chevrolet Vega.Initially marketed in Canada for model years 1973–1974, the Astre debuted in the U.S. for the 1975 model year, competing with other domestic and foreign subcompacts that included the Mercury Bobcat, Volkswagen Rabbit, and Toyota Corolla.
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 ...