GM's 5.3-liter Vortec doesn't have the LS' performance reputation, but it's a capable small-block V8 all the same, as its ...

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 ...

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 ...

The performance world is full of stories on how to bolt in a $10,000 crate LS engine into a 100-point, perfectly restored muscle car. The majority of these well-meaning stories seem to miss the mark ...

The LS and Vortec engines are well-known to be under the hood of GM models, but there are key differences between them. Here's what you need to know.