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Here is a look at the tricks inside GM’s big 2.7-liter four-cylinder
It's nothing new to see modern engines that are packing more and more technology in smaller and smaller packages. While that typically means smaller displacements, the new GM 2.7-liter inline-4 proves that is not always the case. The go-to four-cylinder engine for many OEMs is a two-liter turbocharged mill, but Cadillac and Chevrolet are now building an engine with almost 150% the capacity along with a unique turbocharger. Here's why.