Fleece Performance Freedom Series Cylinder Head 17-23 GM 6.6L Duramax L5P
Give your 2017-2023 6.6L GM Duramax L5P the boost it deserves with the Fleece Performance Freedom Series Cylinder Head. With your choice of side or both the driver side (left) and passenger side (right), these cylinder heads are precision engineered to enhance airflow, delivering improved combustion and unlocking additional power for your truck. Whether you’re hauling, towing, or just want that extra edge, this upgrade helps your Duramax breathe better and perform stronger.
Built in Fleece’s state-of-the-art Freedom Racing Engine shop, each cylinder head is crafted from a remanufactured OE casting and rigorously inspected, pressure tested, and leak tested to ensure top notch reliability. Outfitted with brand new valves, valve guides, springs, and valve seals, these heads deliver optimal performance for heavy duty or daily driving.
No core charge means an easy, hassle free upgrade. For the best fit and seal, pair with a GM head gasket (Grade C, 12727486). Take your Duramax to the next level with superior airflow, better power delivery, and the dependability to handle the toughest jobs.
Select Select Your Side
From $359.70
Original: $1,199.00
-70%Fleece Performance Freedom Series Cylinder Head 17-23 GM 6.6L Duramax L5P—
$1,199.00
$359.70
Description
Give your 2017-2023 6.6L GM Duramax L5P the boost it deserves with the Fleece Performance Freedom Series Cylinder Head. With your choice of side or both the driver side (left) and passenger side (right), these cylinder heads are precision engineered to enhance airflow, delivering improved combustion and unlocking additional power for your truck. Whether you’re hauling, towing, or just want that extra edge, this upgrade helps your Duramax breathe better and perform stronger.
Built in Fleece’s state-of-the-art Freedom Racing Engine shop, each cylinder head is crafted from a remanufactured OE casting and rigorously inspected, pressure tested, and leak tested to ensure top notch reliability. Outfitted with brand new valves, valve guides, springs, and valve seals, these heads deliver optimal performance for heavy duty or daily driving.
No core charge means an easy, hassle free upgrade. For the best fit and seal, pair with a GM head gasket (Grade C, 12727486). Take your Duramax to the next level with superior airflow, better power delivery, and the dependability to handle the toughest jobs.
