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 ...

Porting has always been perceived by enthusiasts as some black art that is known only to a select few who have spent years in dark alcoves grinding cylinder heads until they have mastered their ...

Cylinder head failures are very dangerous and very expensive, so it's important to recognize the key signs early. Here's what ...

Cylinder heads are arguably one of the most important parts for building horsepower in your engine, but the question always comes down to the ratio of horsepower-per-dollar. The go-to budget cylinder ...

Horse Sense:With the Z head, Ford Racing Performance Parts has come full circle. Back in the early 5.0 days, its first cylinder head was a streetable-but not emissions-legal-offering called the J302.

Horse Sense:New small-block cylinder heads just keep coming. We've lost count, but there are, or have been, around 40 aftermarket cylinder heads since the 5.0 H.O. engine made the scene. A long time ...