The 5.3-liter V8 Ecotec3 might seem like the stepchild of the General Motors family, especially with the LS series of engines around, but it's a winner in its own right. This naturally aspirated ...

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 ...

General Motors' Duramax diesel engine lineup has been powering GM trucks and SUVs and enthralling gearheads since its original release in 2001. While the most famous member of the Duramax roster is ...

The first-generation 3.0-liter LM2 Duramax diesel engine was a GM product manufactured in Michigan. The engine became the first diesel for GM's Chevy and GMC light-duty trucks since 1997, and the ...

We all know EPA fuel economy ratings are hogwash. Eight months and 16,000 miles of diverse driving have proven that as we’ve averaged 18.8 mpg in our diesel Silverado ZR2. However, if you pull the ...

When it comes to GM engines, the Chevy small block and LS motors get most of the love and attention. But there's another Chevy engine deserving of recognition for its legacy in the world of GM trucks.

We put both engines on the dyno to see which made more horsepower and torque. It didn’t go as planned. Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder ...

From the archives: Using a stash of parts and an old set of AFR 227 heads, see how this small-block combo got every last bit of power. To celebrate HOT ROD's 75th anniversary, we teamed up with ...