Fleece Performance Remanufactured Cylinder Heads - LB7/LLY/LBZ/LMM

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 casting
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