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 ...

So why would you want to build an LS engine? Because they are cheap horsepower and easy to build. Over a million trucks were made with V-8-powered LS powerplants since 1998. Tons of aftermarket ...

When does "just a little bit more" become too much of a good thing? The answer is that it occurs a lot sooner than most hot-rodders think. We're not sure when it happened, but at some point an engine ...