Fleece Freedom Series Cupless LB7 Duramax Cylinder Heads 2001-2004 6.6L

Fleece's Freedom Series LB7 cylinder heads are a game changer. These all new castings require no injector cups and come assembled with all new valvetrain. Unlike remanufactured heads, there is also no core charge required.

ALL NEW! Freedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting 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

FEATURES

• Cupless injector bore - no injector cups to leak again ever!
• New aluminum casting
• New valves, valve guides, new springs, and new valve seals
• CNC cut, multi-angle valve job

APPLICATION NOTES

Fits Federal Emissions vehicles ONLY. Does not fit California delivered vehicles.

INSTALLATION NOTES

• Fleece recommends using GM 12637788 head gasket (Grade C, Right) and GM 12637785 head gasket (Grade C, Left)