Remanufactured GM Chevrolet 3.5L 3.9L Single Cylinder Head OHV

Remanufactured GM Chevrolet 3.5L 3.9L (523 Casting) V6 OHV Single Cylinder Head

Professional-Grade OEM Replacement for Restored Engine Performance

This remanufactured single cylinder head is engineered for GM 3.5L and 3.9L V6 OHV engines, featuring the high-quality 523 casting. Each unit is precision-machined and tested to meet or exceed OEM specifications, providing a reliable and durable solution for your vehicle’s valvetrain.

🛠️ 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: 3.5L / 3.9L V6
• Casting Number: 523
• Material: Aluminum
• Engine Type: OHV (Overhead Valve)
• Condition: Remanufactured
• Included Components: Single cylinder head with valves and springs
• Core Return Required

🚛 Fitment Data

Common Applications:

• Saturn Aura: 2007–2008 Saturn Aura (3.5L)
• Pontiac G6: 2006–2010 Pontiac G6 (3.9L)
• Chevrolet Impala: 2006 Chevrolet Impala (3.5L)
• Chevrolet Impala: 2006–2011 Chevrolet Impala (3.9L)
• Chevrolet Impala: 2007–2010 Chevrolet Impala (3.5L, VIN K 8th digit)
• Chevrolet Impala: 2007–2010 Chevrolet Impala (3.5L, VIN N 8th digit, Front)
• Chevrolet Impala: 2011 Chevrolet Impala (3.5L, VIN K 8th digit)
• Buick Lucerne: 2009–2011 Buick Lucerne (3.9L)
• Chevrolet Malibu: 2006–2010 Chevrolet Malibu (3.5L, VIN K 8th digit, Opt LZE)
• Buick Montana: 2006–2009 Buick Montana (SV6, 3.9L)
• Chevrolet Monte Carlo: 2006–2007 Chevrolet Monte Carlo (3.5L)
• Chevrolet Monte Carlo: 2006–2007 Chevrolet Monte Carlo (3.9L)
• Buick Relay: 2006–2007 Buick Relay (3.9L)
• Chevrolet Terrazza: 2006–2007 Chevrolet Terrazza (3.9L)
• Chevrolet Uplander: 2006–2009 Chevrolet Uplander (3.9L)
• Saturn Vue: 2008–2010 Saturn Vue (3.5L)