Remanufactured Chevrolet Colorado GM GMC Canyon H3 Cylinder Head 3.7L

Remanufactured GM Chevrolet GMC 3.7L Cylinder Head

Professional-Grade Replacement For Reliable Engine Performance

This remanufactured 3.7L DOHC cylinder head is precision-machined to meet or exceed OEM specifications for Chevrolet and GMC vehicles. This head is fully restored to ensure a perfect seal, optimal airflow, and long-term durability. It serves as a direct-fit solution for 5-cylinder Vortec 3700 engines.

🛠️ 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: 3.7L
• Material: Aluminum
• Condition: Remanufactured
• Valvetrain: DOHC (Double Overhead Cam)
• Core Return Required

🚛 Fitment Data

Common Applications:

• Chevrolet Colorado: 2004–2012 Chevrolet Colorado (3.7L)
• GMC Canyon: 2004–2012 GMC Canyon (3.7L)
• Hummer H3: 2006–2010 Hummer H3 (3.7L)