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== Background ==
The brainchild of [[Chevrolet]] chief engineer [[Ed Cole]], the [[Chevrolet small-block engine (first- and second-generation)|first generation of the Chevrolet small-block engine]] was first unveiled in the 1955 [[Chevrolet Corvette (C1)|Chevrolet Corvette]] and [[Chevrolet Bel Air]], both powered by the {{cvt|265|cuin|cc|sigfig=4}} "Turbo-Fire." The 265 Turbo-Fire distinguished itself from other engines of the era such as [[Cadillac|Cadillac's]] [[Cadillac V8 engine#331 series|331 series]] of the late 1940s and early 1950s by reducing the size and weight of various components within the engine; a compact [[engine block]] combined with a light [[valvetrain]] gave the Turbo-Fire a {{cvt|40|lbs|kg|sigfig=2}} weight reduction compared to the [[Chevrolet Stovebolt engine#235|inline-sixes]] (despite having two more cylinders) that initially powered the first generation of the Corvette, alongside a significant horsepower increase of 25%. This contributed to lowering the Corvette's {{cvt|0-60|mph|km/h}} from 11 seconds to 8.7.<ref name=":4">{{Cite news |last=Stenquist |first=Paul |date=2013-01-18 |title=Talking About a New Generation: A Redesigned Engine for Corvette |language=en-US |work=The New York Times |url=https://www.nytimes.com/2013/01/20/automobiles/talking-about-a-new-generation-for-the-corvette.html |access-date=2023-03-22 |issn=0362-4331 |archive-date=March 22, 2023 |archive-url=https://web.archive.org/web/20230322084345/https://www.nytimes.com/2013/01/20/automobiles/talking-about-a-new-generation-for-the-corvette.html |url-status=live }}</ref><ref name=":0">{{cite magazine|magazine=[[Machine Design]]|title=From blue flame six to LT5|volume=65|issue=17|page=32|id={{ProQuest|217149408}}
Nicknamed the "Mighty Mouse," the Turbo-Fire soon became popular within the hot rodding community too, along with scoring wins in [[stock car racing]].<ref name=":1" /> A larger version of the Turbo-Fire arrived in 1957, now [[Boring (manufacturing)|bored]] out to {{cvt|3.875|in|mm|sigfig=3}}. This gave the new engine a total displacement of {{cvt|283|cuin|cc|sigfig=4}}; this newer version was dubbed the "Super Turbo-Fire." The Super Turbo-Fire was also the first engine offered with [[mechanical fuel injection]]. The top-of-the-line model produced {{cvt|283|hp|kW PS|0}}, giving it a 1:1 cubic inch to horsepower ratio;<ref name=leg/> this lowered the Corvette's {{cvt|0-60|mph|km/h|0}} to 7.2 seconds.<ref name=":0" />
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