The biggest differences between the 5.3 and 6.2 GM engines

General Motors made V8s with 5.3-liter and 6.2-liter displacements. While they're under the same brand name, there are a few ...
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GM 5.3-Liter Vortec Engine: How Much Horsepower And Torque Does It Produce?

General Motors introduced the 5.3-liter Vortec V8 back in 1999 and kept it in production for 15 years. Over that time, it became one of the most popular small-block engines in GM's lineup, offering ...