The engine is of 1910 vintage and is a typical example of early T-head practice. Gas and air enter at one port, pass the intake valve, are compressed and fired, and the burned gases are driven off...
The head of a Tyrannosaurus rex was up to 5 ft long. In order to keep the head from being to heavy, T-rex had large skull openings (like other theropods) and also a honeycomb structure to the inside...