Inside an internal combustion engine is an intricate web of small tunnels or passageways that enable oil or coolant to flow, which helps keep everything lubricated and operating at the proper ...

When you're walking a trade show you never know what you will come across, and the 2022 PRI show was no exception. We definitely weren't expecting to stumble across a four-cylinder crate engine topped ...

From Street Stock to Winston Cup, the three most important areas for engine performance improvements are cylinder heads, valvetrains, and intake manifolds. In particular, cylinder heads affect most ...

You might think that four cylinders are inherently better than three, but is that really the case? The answer is more nuanced ...

There was a “what-if” question addressed a few months ago in our Performance Q&A column that piqued our interest. The question was simple: If you had a set of iron and aluminum cylinder heads that ...

Horse Sense:Our normal M.O. for this type of project is to evaluate cylinder heads as part of an overall top-half package that includes a camshaft and intake manifold. Since the word on the street is ...

Imagine a letter showing up in your mailbox from the company that made your car, requesting you to bring it in for a crucial engine component replacement. That might sound a bit strange, but it’s ...