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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 ...
Removed text: Many Quad 4 engines did not see over 120,000 miles (190,000 km) due to connecting rod issues [citation needed].The Quad 4 was plagued with blown headgasket issues almost from the introduction of the engine. The problems primarily arose from the fact that the cylinder head was built from aluminum and the block from cast iron, which ...
The engines were also sold for marine and stationary applications. In a 1938 reorganization, Winton Engine Corporation became the GM Cleveland Diesel Engine Division, and GM's Detroit Diesel Engine Division began production of smaller (50–149 cu in (0.8–2.4 L) per cylinder) diesel engines. Locomotive engines were moved under the GM Electro ...
The Oldsmobile Quad 4 is a straight-four engine with four valves per cylinder and dual overhead camshafts — the first volume production engine designed entirely in the US to have these features. The factory Quad 4 produced 150 hp (112 kW) and 160 lb⋅ft (217 N⋅m) of torque in its initial configuration.
It was offered in four different trim levels during its production run: S, SC, SL, and SCX. Available engines included different versions of the Oldsmobile-developed 2.3 L Quad 4 engine: the base single-cam L40 "Quad OHC", the DOHC LD2, the high-output LG0, and the special "W41" variant of the LG0 Quad 4 used in the SCX model. All were replaced ...
DETROIT (AP) — General Motors is recalling nearly 462,000 pickup trucks and big SUVs with diesel engines because the rear wheels can lock up, increasing the risk of a crash.. The recall in the U ...
The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.2 and 2.5 litres.Confusingly, the Ecotec name was also applied to both the Buick V6 Engine when used in Holden Vehicles, as well as the final DOHC derivatives of the previous GM Family II engine; the architecture was substantially re-engineered for this new Ecotec ...
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