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Cadillac V8 engine
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==Cadillac 4.2L twin-turbo V8 LTA engine== {{main|Cadillac twin-turbo V8}} The 4.2-liter V8 engine (GM RPO code [[Cadillac twin-turbo V8|LTA]]) is an eight-cylinder, [[dual overhead cam]] (DOHC) twin turbo engine produced by General Motors specifically for use in Cadillac luxury vehicles. The engine is the result of a new clean-sheet engine design as well as Cadillac's first [[twin-turbo]] V8 engine. It first launched with the 2019 [[Cadillac CT6]].<ref>{{cite web|title=Cadillac 4.2 Liter Twin-Turbo V-8 LTA Engine|url=http://gmauthority.com/blog/gm/cadillac/cadillac-engines/cadillac-4-2-liter-twin-turbo-v-8/lta/|website=GM Authority|date=21 March 2018|access-date=18 April 2018}}</ref> From the 1950s through the 1970s, each GM division had its own V8 engine family. Some were shared among other divisions, but each respective design was engineered and developed by its own division: * [[Buick V8 engine]] * [[GMC V8 engine]] * [[Chevrolet small-block engine (first- and second-generation)]] * [[Chevrolet big-block engine]] * [[Oldsmobile V8 engine]] * [[Pontiac V8 engine]] * [[Holden V8 engine]] GM later standardized on the later generations of the Chevrolet design: * [[General Motors LS-based small-block engine]] * [[List of GM engines]]
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