I’ve never had a bad experience with a MachineArt Moto product. And the new X-Head DOHC cylinder head guards keep that record intact. Designed for the BMW R1200RT engine, they add virtually nothing in ...

Without question, cylinder-head porting is a science. The act of removing metal from the intake and exhaust ports to increase airflow has been used for decades, and in most cases, a skilled head ...

A cylinder head, especially an aluminum one, seldom fails on its own. Typically, there's another matter to contend with. Undoubtedly, the most frequent cause of cylinder-head cracking is an overheated ...

Aluminum cylinder heads sometimes get a bad reputation for warping issues. Here's the truth behind these rumors and why aluminum can be more prone to warping.

Hot-rodders share a common denominator, irrespective of brand loyalty: get from A to B as fast and as inexpensively as possible. Within the scope of the engine, that means focusing primarily on the ...