Among the advantages of these engines are factory aluminum heads, lightweight composite intakes and in some cases aluminum blocks. Many, such as the 5.3L (RPO LM7) have a cast-iron block with aluminum ...

GM's 706 Vortec heads are the cheapest and most effective heads you can use on your 4.8-liter and 5.3-liter, and even some 6.0-liter LS engine builds. Bold statement? Well, not really. You see, these ...

Back in the mid- to late 1950s, if you wanted a powerful, comfortable, and reasonably luxurious driver, a 1957 Chevy Bel Air was an obvious choice. Today, not much has changed—well, at least in the ...

In previous issues we talked about the GM 5.3 engines and how they are abundantly available. Recently, we have been hearing more talk about the smaller version of the LS family known as the 4.8. Now ...

Back in 1955, General Motors gave birth to one of America's most iconic engines, the Chevy small-block V8. Among these, the LS series, also known as the third and fourth generations of small block V8, ...

General Motors' LS crate engine is a series of popular V8 engines (and recently V6 engines) that punch well above their weight class. While these motors are small, they can deliver far more ...

Editor’s note: The LS Fest West, a gathering dedicated to all things powered by GM’s LS or current generation LT V8, has concluded in Las Vegas. Here are four builds that caught our eye. LS-Swapped ...