The idea behind this effort was to use one flow bench to test as many small-block and big-block Chevy cylinder heads as possible. By using one flow bench and the same test procedure, we eliminated ...

If size is the only thing that matters, then big-block Fords would dominate the street/strip world. They don't. At least not yet, but big changes are on the horizon thanks to Air Flow Research. Most ...

The key to horsepower heaven is in the shape of the cylinder head. Inside these castings, ports direct airflow to and from each cylinder. Since horsepower enthusiasts often attempt to improve their ...

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 ...