Richard Holdener Holdener took a stock, flat-top 5.3-liter LS and put it on an engine dyno to find a baseline power rating. The results were as predicted: 342 peak horsepower and 379 lb-ft of torque.

While GM's LS series became well-known for its performance, and the go-to engine for insane engine-swap builds, the 5.3-liter Ecotec3 can be called the V8 for the masses.