Remanufactured GM Chevrolet Trailblazer 4.2L Cylinder Head 2006-2008

Remanufactured GM Chevrolet 4.2L Cylinder Head – 2006-2008

Professional Grade OEM Replacement For GM 4.2L Inline-6 Engines

This is a premium remanufactured cylinder head for 2006–2008 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.

🛠️ 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.

📊 Technical Specifications

• Engine Size: 4.2L Inline-6
• Material: Aluminum
• Condition: Remanufactured
• Years: 2006–2008
• Core Return Required

🚛 Fitment Data

Common Applications:

• Chevrolet TrailBlazer: 2006–2008 Chevrolet TrailBlazer (4.2L)
• Chevrolet TrailBlazer EXT: 2006 Chevrolet TrailBlazer EXT (4.2L)
• Buick Rainier: 2006–2007 Buick Rainier (4.2L)
• GMC Truck Envoy: 2006–2008 GMC Truck Envoy (4.2L)
• GMC Truck Envoy XL: 2006 GMC Truck Envoy XL (4.2L)
• Isuzu Ascender: 2007–2008 Isuzu Ascender (4.2L)