Testing engines is like running a marathon. There are some spots where you're way behind, and there are others where you're pulling ahead. However, the race is almost never done. Last month was one of ...

Add Yahoo as a preferred source to see more of our stories on Google. Any engine builder will tell you how important cylinder heads are to power and performance, so enthusiasts looking to spruce up ...

What happened to the big power numbers of the 454? The last generation big-block by GM (Vortec 454) leaves much to be desired when it comes to output. The Vortec big-block was gifted with a sequential ...

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 ...

The popularity of various engine designs typically fades over time as technological advances provide more power, better fuel economy, or both. Flathead designs gave way to overhead valves, and inline ...

For those readers out there who may be scratching their heads, the big red Swedish meatball you see before you is a 1974 Volvo C303, hailing from the automaker’s line of military vehicles. This ...

Automakers have launched many series of engines meant to offer greater performance or efficiency than their predecessors. Chevy's Vortec line, which includes General Motors' vortex technology, boosted ...