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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 , forged components and solid lifters. It produced 110 hp (82 kW) and 107 lb⋅ft (145 N⋅m).
The Cosworth Vega Twin-Cam engine is a 122 cu in (1,999 cc) inline-four with die-cast aluminum alloy cylinder block and Type 356 aluminum alloy, 16-valve cylinder head with double overhead camshafts held in a removable cam-carrier that doubles as a guide for the valve lifters. Each camshaft has five bearings and is turned by individual cam ...
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.
The valves were the biggest that could be fitted into the combustion chamber. Flat top pistons delivered the 10.5:1 compression ratio. The new Cosworth WAA [31] engine also was Cosworth's first one-piece head, i.e. the camshaft carrier was cast integral with the head itself. Again the constraints of the existing head-bolt pattern meant that ...
In 1975, the H-platform also adopted a Buick-designed 231 cubic-inch V6. For 1978, the 140 cubic-inch inline-4 was replaced by a Pontiac-designed 151 cubic-inch inline-4 (later known as the "Iron Duke" engine). [6] In addition to the Cosworth Vega engine, the H platform served in the development of several advanced GM engine designs.
One of the most successful and longest-lived projects of Cosworth has been its Indy car engine program. In 1975; Cosworth developed the DFX, by destroking the engine to 2.65 L and adding a turbocharger, the DFX became the standard engine to run in IndyCar racing, ending the reign of the Offenhauser, and maintaining that position until the late 1980s.