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 ...

The test engine used here was our trusty T&L-built 383. Basically, this engine's role in life is to run such tests as we are doing here. The plan was to run four pairs of the latest Dart Platinum ...

Chevy's new bow tie head, left to right: 14011058 cast iron V8, 14011050 aluminum V8, and 14044802 90-degree V6. All share the same intake and exhaust port design philosophy, although there are some ...

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 ...