Abandoned without the sparkplugs, the car’s engine is seized beyond hope, and the mechanic has to tear it apart to find the ...

So, Chevy's engineering team went about designing an experimental 302 small block with hemispherical combustion chambers, revised pistons, hemi camshaft, magnesium valve covers, and a high-flow ...

The engine takes its name from the hemispherical shape of the combustion chambers; this design maximizes energy transfer to the piston and allows for the installation of large valves. The Hemi ...

Researchers from the Abdullah Gül University in Turkey have developed a hemispherical shell shape for the structure of organic photovoltaic (OPV) cells. They conducted a three-dimensional finite ...

The first generation of hemispherical combustion chambers on ... (none of which was marketed as ‘Hemi‘) with several piston displacements. Chrysler Corporation’s war efforts were put to ...