2006-2008 BMW N52 Engine L6 DOHC NEW Cylinder Head - Limited Quantity!

Part#: ALL-N52

Condition: NEW - Exceeds OEM Specifications

Manufacturer: BMW

Year Range: 06-08

Engine Size: L6 - Dohc

Description: 2006-2008 BMW N52 Engine L6 DOHC NEW Cylinder Head

The cylinder heads and gasket set 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.

Cylinder Head Rebuilding Process

1. Initial Inspection: As a unit comes to our shop, we will give it an initial inspection to determine if there are any reasons the head should not proceed to the rebuilding process. This inspection can quickly catch problems such as cracks, casting damage, and other situations that would halt the rebuilding procedure for that casting.
2. Teardown: Teardown is also important to the initial inspection process as the cylinder head is disassembled because you can determine other areas of potential damage to the casting. The parts and cylinder head are separated and go through different cleaning processes.
3. Cleaning Process: We use several different processes to clean cylinder heads.

• Cast Iron Heads: Cast Iron heads are cleaned in a thermal cleaning system. They are baked at 600° to reduce and oils into an ash, and are then put in a steel shot machine to give them a nice brilliant finish.
• Aluminum Heads: Aluminum heads are either baked at a lower temperature or put into a high-pressure wash. They are also glass beaded to give them a brilliant finish.

4. Head Inspection: After cleaning heads, they are then pressure tested or magnaflux to determine any cracks. All bolt holes and valve guides, in addition to the valve seat and other parts of the head, are inspected for damage such as broken bolts, broken taps, cracked guides, and other impairments. Straightness and cam bore wear is also checked.
5. Machining: All cylinder heads have guides installed to meet OE conditions. They are resurfaced to far exceed factory specifications on surface finish. Three angle valve job is performed to achieve a valve seat runout of less than .001. Valves are ground to make a perfect seal between the valve and valve seat.
6. Assembly: All heads have new OE style valve guide seals installed. Springs are tested to insure proper seat pressures. Valve seat sealing is checked with a vacuum to ensure an airtight fit between the valve and the valve seat. Lifters are bled and rebuilt to accomplish zero lash after startup of the engine. Cams are polished and clearances are checked twice to meet OE oil clearances.
7. Final Inspection: Heads are visually inspected. The surface finish, lash, bolt holes, and all other areas are inspected to ensure a quality cylinder head.

If you have any further question regarding our cylinder head services or how to get a quality cylinder head, contact us at 1-866-766-9955!

Warranty

Match head before installation! We will NOT warranty incorrect head installation.

Please call us immediately if you have any questions or concerns with your cylinder head purchase.

12 Months from time of purchase

First 3 Months warranty will consist of the following terms:

1. Repair or Replacement of Cylinder Head.
2. Supply of Gasket Set for Reinstallation.
3. Labor time will be calculated from book time times $25.00 per hour. A maximum payout will not exceed 10 hours.
4. Replacement of fluids and filters will be included in our warranty.

Remaining term of warranty will consist of the following:

1. Repair or Replacement of Cylinder Head.
2. Supply of Gasket Set for Reinstallation.
3. Replacement of fluids and filter will be included.
4. No LABOR will be given.

Warranty is VOID under any of the following conditions:

1. Improper Installation.
2. Overheating. Heat Tab melted or missing.
3. Insufficient oiling to cylinder head.
4. Faulty Cooling system operation.

Possible warranties are to be returned to Allied Motor Parts. Potential warranties are to be uncleaned and totally assembled. Any disassembly of cylinder head will VOID warranty. All warranties must be accompanied by proof of purchase.

No warranties on threaded bolt holes after installation.

The warranty described above shall be in lieu of any other warranty, expressed or implied, including, but not limited to, any implied warranty of merchantability of fitness for a particular purpose.