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.
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 ...
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The Iron Duke: GM's Hated But Unbreakable Engine
Durable and efficient, this simple four-cylinder was the right engine at the right time.
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