In general, the General Motors Vortec 5.3-liter V8 is a powerful, dependable engine. If you’re not familiar with General Motors’ Vortec engines, they are a family of small-block V8s that GM put into wide use across its truck and SUV models starting in the mid-1990s. Built around vortex technology, which generated swirl inside the engine’s combustion chamber to help the gasoline atomize, the Vortec line developed alongside General Motors’ classic LS engines. While the Vortec and LS engines have several
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