When we left Project Groundhog at the end ofPART 1, we had just finished assembling the short-block. To briefly sum up the scope of the build, we started with a down-in-the-dirt (literally) Gen III ...

Automotive engine technology has come a long way since Carl Benz put a one-cylinder 2/3 horsepower engine on the Patent Motorwagen in the late 19th century. Modern engines are cleaner-burning, highly ...

It’s no secret that LS engines have exploded in popularity over the past decade, as 4.8-liter, 5.3-liter, 6.0-liter, and 6.2-liter engines are plentiful, cheap, and strong. They also have easy-to-run ...

In the 11 years since the LS-series of small-block Chevys was introduced, they have been factory-installed in everything from Corvettes to passenger cars, trucks and SUVs. It's the latter that we want ...

Once uncharted territory, the LS engine swap can now be done on multiple vehicle platforms with off-the-shelf parts. Holley is trying to make that happen now with the Gen III Hemi. Will it be as ...

While the 5.3L LS4 V8 was the first car engine to feature Active Fuel Management (cylinder deactivation) technology, it was not Flex Fuel capable and did not have variable valve timing. As mentioned, ...

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 ...