Cylinder-head port design and modification has been a source of speculation for as long as there have been internal combustion engines. Because engines are power-making air pumps, airflow volume and ...

Cylinder head porting can take many different levels; in most forms of all-out racing, the porting is among the key considerations of an engine program. This should come as no surprise, since, as pro ...

Since the days of relieving flathead Fords, we've known about the advantage of porting. Grind those critical passages with the right touch, and airflow through the engine improves-and with more air ...

Before we get into the nuts and bolts of this tech article, we want to tell you about the events that led up to it, as they were primarily the driving force behind testing the Brodix cylinder heads in ...