Introducing our Freedom Series cylinder heads for the 2017 - 2023 L5P 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valves, valve guides, springs, and valve seals. Perfect for the daily driver or towing application. No core charge! Features Re-manufactured OE casting New valves, valve guides, springs, and valve seals Pressure and leak tested Multi-angle valve job Installation Notes: We recommend using GM head gasket (Grade C, 12727486)
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2023 | Chevrolet | Silverado 2500 HD | Custom |
| 2017-2023 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2023 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2023 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2023 | Chevrolet | Silverado 2500 HD | WT |
| 2017-2023 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2023 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2023 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2023 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2023 | GMC | Sierra 2500 HD | AT4 |
| 2017-2021 | GMC | Sierra 2500 HD | Base |
| 2017-2023 | GMC | Sierra 2500 HD | Denali |
| 2022-2023 | GMC | Sierra 2500 HD | Pro |
| 2017-2023 | GMC | Sierra 2500 HD | SLE |
| 2017-2023 | GMC | Sierra 2500 HD | SLT |
| 2020-2023 | GMC | Sierra 3500 HD | AT4 |
| 2017-2021 | GMC | Sierra 3500 HD | Base |
| 2017-2023 | GMC | Sierra 3500 HD | Denali |
| 2022-2023 | GMC | Sierra 3500 HD | Pro |
| 2017-2023 | GMC | Sierra 3500 HD | SLE |
| 2017-2023 | GMC | Sierra 3500 HD | SLT |
