The engine in a Chrysler 300C depends on the model year and trim. Across its lifespan, the 300C has been offered with multiple powerplants, including the 5.7-liter Hemi V8, the larger 6.1-liter Hemi in early SRT8 versions, the 6.4-liter Hemi in later SRT models, and the 3.6-liter Pentastar V6 as a standard option on many later configurations. In short, there isn’t a single engine that defines the 300C; the exact engine varies by year and market.
Classic engines (2005–2010)
This era established the core V8 options that defined the early 300C lineup.
- 5.7 L Hemi V8 — the primary powerplant for the standard Chrysler 300C, delivering robust V8 performance with a 5-speed automatic transmission and either rear-wheel drive or all-wheel drive depending on the configuration.
- 6.1 L Hemi V8 — used in the high-performance 300C SRT8 variant, offering substantial horsepower for enthusiasts seeking enhanced acceleration and performance.
These years centered the 300C around big-displacement V8 power, with the SRT8 model serving as the pinnacle of the lineup.
Modern era engines (2011–2023)
As the lineup evolved, Chrysler shifted toward more efficient powertrains while preserving V8 options for enthusiasts in select trims.
- 3.6 L Pentastar V6 — became the standard engine on most non-SRT 300C models, providing modern efficiency and adequate performance across everyday driving.
- 5.7 L Hemi V8 — offered on certain trims and packages as an option for those who still wanted V8 power on some 300C versions.
- 6.4 L Hemi V8 (392 cu in) — used in later SRT variants (notably the 300SRT/Chrysler 300 SRT) to deliver high-performance output in a factory-equipped configuration.
In this era, the Pentastar V6 became the common baseline, with V8 options retained for performance-focused models.
How to verify the exact engine
Because engine availability varied by year, trim, and market, the best way to confirm the precise engine in a given Chrysler 300C is to check the VIN, window sticker, owner’s manual, or the original dealer documentation for that specific vehicle.
Summary
The Chrysler 300C has spanned several powertrains over its production life. Early models emphasized the 5.7-liter Hemi V8, with the SRT8 adding a 6.1-liter Hemi. In the modern era, the 3.6-liter Pentastar V6 became the common baseline, while some trims and performance variants retained larger V8 options such as the 5.7 L and 6.4 L Hemi. Always verify the exact engine for a specific year and configuration.