91-10 Cadillac NorthStar 4.6L 281Cu DOHC Cylinder Head Cast # 12555402 Left Side

*** Please verify casting # is the same before you order ***

Side:: Left Side ( Driver Side )
Sale price$400.00

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Only 1 unit left

Good Core Return Required

Core charge is not billed up front, this saves paperwork for you and for us. The core is due in thirty days. If the core is not returned within the thirty-day period, a core charge will be applied to your credit card. 30 days after the sale core must be returned. A prepaid FedEx shipping label will be included to return the core.

Warranty Information

3 years 36,000 miles parts only. Cylinderheadstore.com warranty is that all products will be free from defects in material and workmanship when used under normal operating conditions. Warranty from the date of purchase. Subject to limitations set forth, Cylinderheadstore.com will replace the product within the warranty period once we determine that the cylinder head is defective. All products must be returned to Cylinderheadstore.com to be inspected under the warranty. No warranty determination can be made until the part is returned to and inspected.


This warranty does not apply to any of the following: 

Damage caused by improper installation, overheating, abuse or neglect. It is the installers responsibility to check all parts for correctness prior to installation. Any installed part either ordered incorrectly by the customer or ship incorrectly by Cylinderheadstore.com is not covered under the warranty. 

Damage due to overheating, pre-ignition or detonation. Any damage that occurs due to improper installation.

Any product used for competitive racing or performance enhancements.

Any product used for commercial, industrial or marine applications.

Fluids, towing, rentals or diagnosis charges.

Repairs made without our authorization will void the warranty.

Cylinder Head

Cylinderheadstore.com require the highest level of machining and assembly when remanufactured. Our reputation for quality rebuilt cylinder head is on commitment to properly train and equip our staff with the latest equipment and manufacturing techniques.

Cylinder Head Remanufacturing Process Includes:

1) Head is thoroughly cleaned and inspected (Hot Tank & Sand Blasting)

2) Pressure tested to ensure no cracks or leaks

3) Guide work performed / replaced with new guides as necessary

4) PCD milled to ensure a super smooth finish

5) All parts are thoroughly cleaned and inspected before assembly

6) Head is assembled with new valve seals

7) New freeze plugs

8) Head does not come with cam seal

Shipping Information:

1) We ship to lower 48 US states ONLY!

2) No shipping to AK, HI, PR or international. We ship FedEx.

3) No shipping to P.O Box.


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