⚠ No shipping to California due to CARB regulation.
Introducing our Freedom Series cylinder heads for the 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 valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Now available with no core charge! Features: New valve guides, new springs, and new valve seals Pressure and leak tested Precision ground stock valves with a 45 degree angle Multi-angle valve job Warranty: 1 Year Limited Parts Warranty
- Precision ground stock valves with a 45 degree angle
- New valve guides, new springs, and new valve seals
- Pressure and leak tested
- Multi-angle valve job
Vehicle Fitment
| Years |
Make |
Model |
Trim |
| 2006–2007 |
Chevrolet |
Silverado 2500hd |
LBZ Duramax 6.6l |
| 2007–2010 |
Chevrolet |
Silverado 2500hd |
LMM Duramax 6.6l |
| 2006–2007 |
Chevrolet |
Silverado 3500 |
LBZ Duramax 6.6l |
| 2007–2010 |
Chevrolet |
Silverado 3500 |
LMM Duramax 6.6l |
| 2006–2007 |
GMC |
Sierra 2500hd |
LBZ Duramax 6.6l |
| 2007–2010 |
GMC |
Sierra 2500hd |
LMM Duramax 6.6l |
| 2006–2007 |
GMC |
Sierra 3500 |
LBZ Duramax 6.6l |
| 2007–2010 |
GMC |
Sierra 3500 |
LMM Duramax 6.6l |
| Air Freight Prohibited: false |
| Not Carb Approved: true |
| Carb Acknowledgement Required: true |
| Ltl Freight Required: false |
| Prop 65: Y |
| Part Type: automotive |
| Epa: N/A |
| Regular Stock: true |
| Units Per Sku: 1 |