Sold out
Click to zoom in
SKU: FPE-61-10014-D / UPC: 732777408917
Fleece Performance Freedom Series Cylinder Head (Driver Side) for 2017-2023 GM 6.6L Duramax L5P
Revitalize your 2017-2023 GM 6.6L Duramax L5P with the Fleece Performance Freedom Series Cylinder Head (Driver Side), part number FPE-61-10014-D. Engineered for precision and reliability, this cylinder head is the definitive choice for drivers seeking a high-quality replacement that delivers consistent performance for daily driving or heavy-duty towing. Crafted in Fleece Performance’s state-of-the-art Freedom Racing Engine shop, this cylinder head ensures your GM 2500/3500 operates at peak efficiency, meeting or exceeding factory specifications.
Why Choose the Fleece?
This driver-side cylinder head is meticulously designed to restore power and efficiency to your GM 6.6L Duramax L5P. Each unit undergoes rigorous inspection, pressure testing, and leak testing to guarantee flawless operation. Built for durability, it’s ideal for demanding applications, offering unmatched reliability for your Chevrolet Silverado or GMC Sierra. The Fleece Performance Freedom Series stands out as the go-to solution for those who value quality craftsmanship and long-lasting performance.
What’s Included in Your Purchase?
- Fleece Performance Freedom Series Cylinder Head (Driver Side) SKU: FPE-61-10014-D
- New Valves: Precision-installed for optimal combustion and airflow.
- New Valve Guides: Ensure smooth valve operation and extended durability.
- New Valve Springs: Designed to maintain consistent pressure and performance.
- New Valve Seals: Prevent oil leaks and maintain engine efficiency.
- 11 Screw-In Freeze Plugs: Eliminate coolant leaks under the valve cover for worry-free operation.
- Pre-Inspected and Pressure-Tested: Each head is thoroughly cleaned, decked, painted, and ready for installation.
- Core and Crate Return Instructions: Paperwork included for seamless core return process (core return required, customer responsible for return shipping costs).
- Note: Head gasket not included. Fleece Performance recommends using a new OEM head gasket, such as Cummins 4932210, for proper installation.
Vehicle Fitment
The Fleece Performance Freedom Series Cylinder Head (FPE-61-10014-D) is specifically designed for the following vehicles with a single alternator configuration:
- 2017-2023 Chevrolet Silverado 2500HD/3500HD with 6.6L Duramax L5P
- 2017-2023 GMC Sierra 2500HD/3500HD with 6.6L Duramax L5P
Important Fitment Note: Fitment is based on year, make, and engine type. Customers must verify compatibility with specific model, trim, build date, and factory options. For applications exceeding stock horsepower, Fleece Performance recommends using ARP625 or ARP L19 12mm head studs for enhanced reliability.
Specifications
- Part Number: FPE-61-10014-D
- UPC: 732777408917
- Application: Driver-side cylinder head for GM 6.6L Duramax L5P
- Shipping Dimensions: 23 in. (L) x 15 in. (W) x 12 in. (H)
- Shipping Weight: 45.00 lbs.
- Power Rating: Rated for up to 700 horsepower, ideal for daily drivers and heavy-duty towing.
- Manufacturing: Built in Fleece Performance’s Freedom Racing Engine shop, inspected, pressure-tested, decked, and painted.
- Installation Notes: No machining required; valves are pre-installed. Follow all installation instructions and adjust valve lash to prevent damage. Back off adjusters on rocker arms during installation.
Key Features
- Precision Engineering: Manufactured to meet or exceed OEM standards, ensuring a perfect fit and reliable performance.
- Enhanced Durability: Equipped with hardened, oversized press-in valve seats and new valve guide liners for long-term reliability.
- Leak-Free Design: 11 screw-in freeze plugs prevent coolant leaks, providing peace of mind under the valve cover.
- Ready for Installation: Each head is pre-assembled, cleaned, and tested, saving you time and effort.
- Versatile Performance: Rated for up to 700 horsepower, making it suitable for both stock and moderately modified engines.
Why Fleece Performance?
Fleece Performance is a trusted name in diesel performance, known for its commitment to quality and innovation. The Freedom Series Cylinder Head is crafted with precision in their Indiana-based facility, ensuring every component meets stringent standards. Whether you’re rebuilding a worn engine or upgrading for better performance, this cylinder head delivers the reliability and power your GM Duramax demands.
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
Fleece Performance
Fleece Performance diesel parts for Ford Power Stroke, Ram Cummins, and Chevrolet/GMC Duramax trucks are stocked at Black Ops Auto Works. Shop Cheetah turbochargers, TurboBrake exhaust brakes, CP3 and CP4 fuel pump upgrades, fuel filter assemblies, coolant tanks, head gasket sets, and sensor pigtails for LB7, LLY, LBZ, LMM, LML, and L5P Duramax engines and 5.9L and 6.7L Cummins engines. Every product is filterable by year, make, model, and engine generation so the correct part ships the first time. Black Ops Auto Works carries 333 Fleece Performance SKUs across turbochargers, fuel systems, cooling, and gaskets. What This Collection Covers Fleece Performance Engineering builds its catalog around the Duramax and Cummins common rail diesel platforms that dominate the high horsepower diesel truck community. Founded by brothers Brayden and Chase Fleece in a rural Indiana pole barn, the company grew into a technology leader in common rail injection systems, developing the Cheetah turb...
View Fleece Performance Products
Head Components
Cylinder head components and engine internals for performance builds and OE service are stocked at Black Ops Auto Works. Shop complete cylinder heads, head gaskets, head stud and bolt kits, rocker arms, lifters, camshaft and lifter kits, rotating assemblies, and main stud and bolt kits for LS, LT, HEMI 5.7/6.1/6.4, Coyote, Cummins, Powerstroke, VW/Audi turbo, Subaru, Nissan, and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 972 Head Components SKUs across component type, engine platform, and bore or gasket specification. What This Collection Covers Head Components groups together the parts that live at and around the cylinder head, the area of the engine most affected by heat, combustion pressure, and clamping load. This includes complete heads, head gaskets, head studs and bolts, rocker arms, lifters, camshaft and lifter kits, main stud and bolt kits, and ro...
View Head Components Products
Heads
This collection covers cylinder head components including head gaskets, head studs, and complete head assemblies for performance engine builds and high-output applications, serving vehicle owners and builders who need reliable components for maintenance, restoration, or performance enhancement. Arp head studs, cometic head gaskets, and edelbrock or afr cylinder heads are foundational brands in performance cylinder head work, providing buyers with the confidence that comes from sourcing from recognized suppliers with documented fitment data. Proper head bolt torque sequence and head gasket compression thickness selection directly affect combustion sealing integrity and engine longevity, and selecting the correct specification for the specific application is the most important step before any installation. Whether the goal is restoring OEM function, addressing a worn component, or improving beyond factory performance, this collection addresses each need with confirmed-fit parts. Popul...
View Heads Products