General Motors' four-cylinder Iron Duke drew on the proven engineering and lasted more than a decade. But it was shadowed by disastrous use in one model.

Fortunately, most of GM’s vehicles and innovations have landed somewhere between these extremes, including one small engine from the not-too-distant past that was largely unloved but nearly ...

General Motors is responsible for some of the greatest engines to ever see widespread use. The Chevy Small Block is considered by some to be the single best engine ever made due to the sheer ...