Part came in and work as a champ. Price was better than all other places I look for the set. Will recommended to all my soldiers and/or buddies if they need cylinder heads replace. Thank you guys.
I got my cylinder head quicker than expected. I would buy from this company again
The experience was excellent. My part came sooner than expected and was exactly as advertised. This is how a business should be run. I would give 6 stars if I could, thank you HDPC
Great company!! The heads arrived in great shape with all the parts. Very quick email responses to questions, comments, and concerns. One little issue with a few parts but was taken care of promply
Remanufactured GM Chevrolet Trailblazer 4.2L Cylinder Head 2006-2008
$750.00
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Additional Info
Remanufactured GM Chevrolet 4.2L Cylinder Head ā 2006-2008
Professional Grade OEM Replacement For GM 4.2L Inline-6 Engines
This is a premium remanufactured cylinder head for 2006ā2008 GM 4.2L engines, engineered to restore factory performance and reliability. Each unit is precision-machined to meet or exceed original equipment specifications, ensuring a durable and seamless direct-fit solution.
š ļø In-House Machining Process
- Cleaning: Fully disassembled and thermally cleaned.
- Soda Blasted: Castings are blasted with Sodium Bicarbonate. Because baking soda is water-soluble, there is zero risk of abrasive media clogging oil passages.
- Pressure Testing: Tested to 60 PSI to ensure no cracks or porosity leaks.
- Surfacing: All heads are resurfaced on our Rottler S85A for a precision gasket-sealing surface.
- Valve Job: Multi-angle valve job performed; every port is Vacuum Tested to ensure valves are seated 100% airtight.
š Technical Specifications
- Engine Size: 4.2L Inline-6
- Material: Aluminum
- Condition: Remanufactured
- Years: 2006ā2008
- Core Return Required
š Fitment Data
Common Applications:
- Chevrolet TrailBlazer: 2006ā2008 Chevrolet TrailBlazer (4.2L)
- Chevrolet TrailBlazer EXT: 2006 Chevrolet TrailBlazer EXT (4.2L)
- Buick Rainier: 2006ā2007 Buick Rainier (4.2L)
- GMC Truck Envoy: 2006ā2008 GMC Truck Envoy (4.2L)
- GMC Truck Envoy XL: 2006 GMC Truck Envoy XL (4.2L)
- Isuzu Ascender: 2007ā2008 Isuzu Ascender (4.2L)
[+] Click to View Full Detailed Fitment List
2007 Chevrolet TrailBlazer 4.2L
2008 Chevrolet TrailBlazer 4.2L
2006 Chevrolet TrailBlazer EXT 4.2L
2006 Buick Rainier 4.2L
2007 Buick Rainier 4.2L
2006 GMC Truck Envoy 4.2L
2007 GMC Truck Envoy 4.2L
2008 GMC Truck Envoy 4.2L
2006 GMC Truck Envoy XL 4.2L
2007 Isuzu Ascender 4.2L
2008 Isuzu Ascender 4.2L
š¦ Core Return & Warranty
- Core Process: No upfront core fee. Receive your new heads and compare them to your originals before installation. Once complete, use the pre-paid return label included in your shipment. Cores must be returned within 30 days. Click here for Core Policy.
- Warranty: Includes a 2-Year Unlimited Mileage Warranty. Click here for Warranty details.
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