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 ...
AutoGuide

General Motors Has A 6.2-Liter Headache

The National Highway Traffic Safety Administration (NHTSA) is investigating reports of defects with GM's 6.2-liter L87 V8 engine, while dealerships and independent repair shops struggle to source ...
AutoGuide

People Are Suing GM Over Its Defective 6.2-Liter L87 V8 Engine

11 lawsuits over GM’s 6.2L L87 V8 have been consolidated into a single class action, centered on engine failures tied to crankshaft and connecting-rod defects. More than 700,000 GM trucks and SUVs ...
Jalopnik

3.0L Duramax Problems: Here's What Owners Report Most Often

About two decades after the launch of the 6.6-liter Duramax V8, GM's 3.0-liter Duramax inline-six turbodiesel arrived in 2019 with a promise to deliver "outstanding fuel economy, great horsepower, and ...