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 ...

Problems are both a hot rodder's bane and joy: A bane because there's nothing worse than a last-minute headache preventing you from getting the car rolling down the road; a joy because there's nothing ...

You just got your new set of aluminum cylinder heads for your engine, but now you have a decision to make. You can either install the heads just as they were sent to ...

Enthusiasts seem to be divided on just what constitutes a real street motor. On one side, we have the daily driver camp, where “street” is defined as the motor used to power your daily driver, as in ...

ONE of the many problems confronting the engine designer is that of selecting proper port dimensions. As a general rule, it appears desirable to keep the ports as small as possible. This procedure ...