Remanufactured GM Chevrolet Trailblazer 4.2L Cylinder Head 2002-2005

Remanufactured GM Chevrolet Trailblazer 4.2L Cylinder Head (2002–2005)

Direct-Fit OEM Replacement Cylinder Head for GM 4.2L Inline-6 Engines

This is a premium remanufactured GM Chevrolet 4.2L cylinder head, precision-engineered for 2002–2005 applications. Each unit is restored to original equipment specifications, ensuring maximum durability and reliable performance for your vehicle.

🛠️ 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: 2002–2005
• Core Return Required

🚛 Fitment Data

Common Applications:

• Chevy TrailBlazer: 2002–2005 Chevy TrailBlazer (4.2L)
• Chevy TrailBlazer EXT: 2002–2005 Chevy TrailBlazer EXT (4.2L)
• Buick Rainier: 2004 Buick Rainier (4.2L)
• GMC Truck Envoy: 2002–2005 GMC Truck Envoy (4.2L)
• GMC Truck Envoy XL: 2002–2005 GMC Truck Envoy XL (4.2L)
• GMC Truck Envoy XUV: 2004–2005 GMC Truck Envoy XUV (4.2L)
• Isuzu Ascender: 2004–2005 Isuzu Ascender (4.2L)