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 ...

350 rear-wheel horsepower may not sound like a lot, but that depends on the application. If we’re talking about a ’71 Chevrolet C10 with the front fascia from a ’69 model, then yeah, that’s plenty of ...

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 ...

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 ...

Owning a classic car, truck, or SUV is a largely joyful experience, but there are definite pitfalls that come with the territory. Having a vehicle that is decades old in your driveway or garage often ...

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 ...

The art of engine swapping goes all the way back to the earliest days of hot-rodding, and continues to be a staple within almost every genre of automotive customization. Whether the search is for more ...

Swapping an LS engine into a car is popular among folks inclined to do such things. It's a great way to gain the horsepower potential and reliability that makes the General Motors LS engines so ...

Builder Nathan Hoy turned his humble 2017 Chevy Sonic into a wild V8 sleeper, squeezing a 5.3-liter LM7 truck engine under the hood. He calls it the “SuperSonic,” and it sounds every bit as crazy as ...