The term Vortec signals that a Chevy engine is using Vortex technology, which employs a circular motion within the cylinder as the fuel and oxygen mix.
Automakers have launched many series of engines meant to offer greater performance or efficiency than their predecessors. Chevy's Vortec line, which includes General Motors' vortex technology, boosted output while enhancing combustion. Vortex technol... [2426 chars]