This engine is known as the Vortec 6000 - a V8 member of GM's Gen IV small block engine family - and is featured a lot in big GM vehicles between 2010 and 2017.

Everything You Need to Know About LS, LSX, and Vortec Engines: Specs, History, Swaps, and More. A complete guide to the history of the LS and Vortec engine brands, the differences between them ...

General Motors' LS and Vortec V8 engines are very similar, to the point that some people consider them one and the same. There are slight differences, though.