[Excaliber]

The term hemi refers to the shape of the combustion chamber, a half sphere, not the plug location.

All though the point is well noted. The CLASSIC Chrysler Hemi and others do place the plug dead center. In my opinion, this does not alter the fact it is a true hemi regardless of plug location. The BIG advantage a Hemi offers is 'cross flow'. Intake on one side and exhaust flowing out the other side, this is a very smooth transition for the flowing gases. The exiting exhaust velocity helps to 'draw in' the fresh intake air charge.