Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Fleece Performance Freedom Series Cylinder Head 17-23 GM 6.6L Duramax L5PGive 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 youre hauling, towing, or just want that extra edge, this upgrade helps your Duramax breathe
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
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Product Reviews
★★★★★ 5
Very nice! Great gift!
Color: Pebble Black, Size: 9.5in x 7.9in
The photos don’t do this item justice. This is very high-quality construction and great look. My son loved it. I will order more for gifts.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Quality organizers for small daily items
Color: Sand Brown, Size: 9.5in x 7.9in
Perfect and high quality tray to organize your small items. Love the color as well.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
Well built, minimal and modern
Color: Moss Green, Size: 9.5in x 7.9in
Bought this to help build routine for my son, rather than spending inordinate amounts of time looking for his things. It’s quality built with a sleek modern look. Very handsome.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Excellent tray
Color: Sand Brown, Size: 9.5in x 7.9in
This is an exceptionally high-quality tray. The design was well thought out and it looks amazing. I keep it in my top dresser drawer to organize extra cards for my wallet, my watch, cufflinks, and other items. I can’t say enough about the high level of quality. It stays in place, has great storage and very reasonably priced I thought.
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Reviewed in the United States on August 15, 2025
★★★★★ 4
Good purchase
Color: Sand Brown, Size: 9.5in x 7.9in
Bought for my husbands desk, it looks nice and good quality for the price
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Reviewed in the United States on January 7, 2026