Description
6.6L Duramax LBZ Loaded Cylinder Head – Left Side w/ Heavy-Duty Valve Springs
High-Performance Replacement Head for 2006–2007 Duramax Builds
Upgrade the left side of your 2006–2007 GM 6.6L LBZ Duramax with this fully loaded cylinder head, pre-assembled with heavy-duty valve springs and all-new valvetrain components. Designed for performance, towing, and reliability, this head is built from a brand-new casting—no core required—and ready to install out of the box.
Whether you’re replacing a cracked OEM head or building a high-horsepower setup, this head offers increased valve control and long-term durability.
✅ Features:
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Brand-new casting – not remanufactured, no core required
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Fully assembled with HD valve springs, new valves, seals, retainers, and locks
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Designed to handle increased boost, RPM, and towing demands
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Left (driver) side cylinder head
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1-Year / Unlimited Mileage Warranty
🔧 Fitment:
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Fits 2006–2007 Chevy Silverado HD & GMC Sierra HD with the 6.6L LBZ Duramax diesel engine
This Duramax LBZ Loaded Head – Left Side is the perfect upgrade or replacement for diesel owners looking for power, strength, and confidence under pressure.
