2004.5-2005 Factory LLY Duramax Cylinder Head (Passenger Side) Fleece Performance " BD DIESEL Fits GM/DANA 12 Bolt Axles

Fits GM/DANA 12 Bolt Axles Price includes applicable core fee

Part Number: AP63803ADR4

There is no longer a need to fear a so-called "reman" pump or injector

an hour of wrenching will deliver an additional 15 HP and give you excellent flow and filtration

A huge inverted cone 360 degree radial flow air filter is used for maximum flow and performance filtration (98

2004.5-2005 Factory LLY Duramax Cylinder Head (Passenger Side) Fleece Performance " BD DIESEL Fits GM/DANA 12 Bolt AxlesIntroducing 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