Good cylinder heads are necessary to the production of serious horsepower, but what exactly constitutes a "good" cylinder head? Typically, we identify them with big, impressive flow numbers.

As reported previously in this column, Chevrolet's newest version of the aluminum big-block cylinder head is ready for release. The new casting features extensive revisions to make it more suitable ...

GM's famously durable 6.6-liter Duramax diesel V-8 comes from the factory with aluminum cylinder heads, but for some owners, cast-iron is the better option.

Honda K-series tuning is one of the deepest rabbit holes in the kingdom of car modifications. There are several way to slice that pie, with turbo K24s making easy supercar power, or high-revving K20 ...

Any old-car enthusiast will tell you one of the biggest challenges in any restoration is sourcing parts. Automotive tooling is big, expensive stuff, and once a model is done and a sufficient store of ...

Modern internal combustion engines are under a lot of stress during normal operation. In particular, there's a lot of tension between the cylinder head and the engine block, especially in diesel ...