Chevy 4.2 Inline-6: The Vortec Engine Everyone Forgot Existed – SlashGear

The popularity of various engine designs typically fades over time as technological advances provide more power, better fuel economy, or both. Flathead designs gave way to overhead valves, and inline cylinder arrangements morphed into V-shaped or horizontally-opposed layouts. However, sometimes the better engine layout depends on its manufacturing cost and versatility. The automotive past is filled with legendary vehicles powered by inline six-cylinder engines. However, despite the recent popularity of the V6, the inline-6 could be making a comeback.

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