# 6.6 Duramax Vs. 6.6 Gas: Which Chevrolet Silverado Engine Is Best?

> The Chevrolet Silverado HD — and its corporate twin in the GMC Sierra HD — can be had with either a standard 6. 6-liter gasoline V8, or the optional 6. 6-liter Duramax turbo-diesel.

- **Source:** [SlashGear](https://www.slashgear.com/1846682/6-6-duramax-vs-gas-chevrolet-silverado-engine-how-compare/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6818f9d4b7306713ae140ddd)
- **Published:** 2025-05-05
- **Category:** Cars
- **Tags:** #chevrolet #ford #duramax #silverado #engine #liter #corporate #diesel
- **Canonical:** http://localhost:4321/a/6818f9d4b7306713ae140ddd

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._