Description
Part#: ALL-65261
Manufacturer: Hummer
Year Range: 07-10
Engine Size: 3.7L - L5
Description: Cylinder Head Hummer Canyon Colorado I370 3.7L - 07-10
Introducing the Cylinder Head for your Hummer Canyon or Colorado I370 from the years '07 to '10 with a robust 3.7L - L5 engine. Manufactured by Hummer, this cylinder head is meticulously crafted to exceed OEM specifications, ensuring top-notch performance and reliability for your vehicle.
Our Cylinder Head, part number ALL-65261, is the ideal choice for those seeking a high-quality replacement. It's been with precision and care, making it a cost-effective alternative to buying a brand-new cylinder head.
With its exceptional durability and compatibility with the specified vehicle models, you can trust this product to keep your engine running smoothly.
Looking for more cylinder head options? Explore our extensive Cylinder Heads collection and select the perfect fit for your vehicle. Should you have any questions or concerns about our cylinder head, don't hesitate to contact our expert support team. We're here to assist you every step of the way, ensuring you make the best choice for your automotive needs. Your satisfaction is our priority!
This Cylinder Head has a core charge of $100.00 included in the cost. This charge is FULLY REFUNDED upon return. We will include a prepaid label for the return freight.
The cylinder head included in this listing will fit the vehicles listed below. It is also important to review / confirm the fitment notes above to assure the vehicle specifics of the head are correct for your application. If you have any question that this may not be the correct head for your vehicle or need help in locating the correct head, please contact us via phone or email prior to making a purchase.
Compatible Vehicle
| MAKE | MODEL | YEAR | ENGINE |
|---|---|---|---|
| Chevrolet | Colorado | 2007-2010 | 3.7L 3654CC 223Cu. In. l5 GAS DOHC |
| GMC | Canyon | 2007-2010 | 3.7L 3654CC 223Cu. In. l5 GAS DOHC |
| Hummer | H3 | 2007-2010 | 3.7L 3654CC 223Cu. In. l5 GAS DOHC |
| Isuzu | i-370 | 2007-2008 | 3.7L 3654CC 223Cu. In. l5 GAS DOHC |
Not sure this is your casting? Call 866-766-9955 with your casting number and your vehicle's year, make and engine, and we'll confirm it before you buy.
Process & Warranty
Cylinder Head Rebuilding Process
1. Initial Inspection: As a unit comes to our shop, we give it an initial inspection to determine whether there is any reason the head should not proceed to rebuilding. This quickly catches problems such as cracks, casting damage and other conditions that would halt the process for that casting.
2. Teardown: The cylinder head is fully disassembled, which reveals other areas of potential damage to the casting. The parts and the head are separated and go through different cleaning processes.
3. Cleaning: Cast iron heads are cleaned in a thermal cleaning system — baked at 600° to reduce grease and oil to ash, then put through a steel-shot machine for a brilliant finish. Aluminum heads are baked at a lower temperature or put through a high-pressure wash, then glass-beaded.
4. Head Inspection: After cleaning, heads are pressure tested or Magnafluxed to find any cracks. All bolt holes, valve guides, valve seats and other areas are inspected for broken bolts, broken taps, cracked guides and other impairments. Straightness and cam bore wear are also checked.
5. Machining: All heads have guides installed to meet OE conditions and are resurfaced to far exceed factory specifications for surface finish. A three-angle valve job achieves valve seat runout under .001". Valves are ground for a perfect seal between valve and seat.
6. Assembly: New OE-style valve guide seals are installed. Springs are tested for proper seat pressure. Valve seat sealing is vacuum-checked for an airtight fit. Lifters are bled and rebuilt for zero lash after startup. Cams are polished and clearances are checked twice to meet OE oil clearances.
7. Final Inspection: Every head is visually inspected — surface finish, lash, bolt holes and all other areas — to ensure a quality cylinder head.
Questions about our cylinder head services? Call 1-866-766-9955.
Warranty — 12 months from purchase
Match the head before installation. We will not warranty an incorrectly installed head. Call us immediately with any questions or concerns about your purchase.
First 3 months:
- Repair or replacement of the cylinder head.
- Gasket set supplied for reinstallation.
- Labor calculated from book time at $25.00 per hour, up to a maximum of 10 hours.
- Replacement of fluids and filters.
Remaining 9 months:
- Repair or replacement of the cylinder head.
- Gasket set supplied for reinstallation.
- Replacement of fluids and filters.
- No labor is covered.
Warranty is void if:
- The head was improperly installed.
- The head was overheated (heat tab melted or missing).
- The head received insufficient oiling.
- The cooling system operated improperly.
Warranty returns must be sent to Allied Motor Parts uncleaned and fully assembled — any disassembly voids the warranty — and must be accompanied by proof of purchase. There is no warranty on threaded bolt holes after installation.
This warranty is in lieu of any other warranty, expressed or implied, including any implied warranty of merchantability or fitness for a particular purpose.
Quality Assurance
Here’s why our cylinder heads stand out:
Thorough Inspection: Every head undergoes a complete teardown, cleaning, and detailed inspection for cracks and imperfections.
Advanced Cleaning: Thermal cleaning for cast iron and high-pressure washing for aluminum ensures a brilliant finish.
Precision Machining: CBN resurfacing, triple-angle valve cuts, and guide installations exceed OEM specifications.
Rigorous Testing: Vacuum tests, tension checks, and pressure tests guarantee performance and durability.
High-Quality Components: New seals, plugs, and rebuilt lifters ensure optimal functionality.
Final Assurance: Each head is inspected, stamped, and stored in a climate-controlled environment.
Wide Availability: Over 2,000 cylinder heads for all makes and models, ready for repair or exchange.
Staff was very helpful confirming the correct head was selected for my vehicle, and shipping was prompt. Head arrived well packaged, clean and complete. After attaching the head to the block and torquing all bolts, I continued with installing the timing components. Unfortunately, I discovered that the bolt hole for the adjustable timing chain guide pivot bolt was stripped. I had to undo some of the completed assembly and install a thread repair insert, then carefully clean all the metal shavings from the area and reinstall everything. Otherwise everything else seems good. Be sure to disassemble and lube the camshaft and valvetrain components as they arrive nearly dry.
