When it comes to engine building, cylinder heads are of utmost importance. Here's why Chevy's small-block Vortec heads could be worth adding to your project.

Explore the rise of GM's iconic LS small-block engine, from its debut in the C5 Corvette to its impact on performance standards and enthusiasts today.

General Motors' LS engines and Ford's small-block V8s are some of the most famous motors in auto history, but can you combine ...

GM's LS engine is a powerhouse, thanks to great-flowing heads that enable tremendous horsepower and high-rpm performance. But while the LS is becoming a more popular swap choice for earlier, pre-C5 ...

Like most ideas, this one started out with a simple statement: "Hey, let's test a few LS heads." From that innocent phrase came what would become the granddaddy of all LS cylinder head tests. Sure, we ...

Paraphrasing Dr. Seuss's magnificent Cat-in-the-Hat, "Calculatus Eliminatus is the best friend that you've got; the way to find the missing horsepower is to find out where it's not!" As we all know, ...

ANSWERBack in 1955, you (or your grandpa) might have posed a very similar question: "Why does that new-fangled small-block Chevy make more peak power and torque at a higher rpm than my trusty Flathead ...