2006-2007 GM Duramax 6.6L LBZ Heads

Upgrading the cylinder head on your 2006-2007 GM 6.6L Duramax LBZ is made easy here at Alligator Performance! We carry a selection of premium aftermarket heads that help better control the airflow in and out of your cylinders so you can enjoy consistent engine performance each time you get behind the wheel. With a component as versatile as the cylinder head, it's essential to ensure strength and durability for all of the high-performance applications you and your Sierra/Silverado have in mind. Luckily for you, we only work with the most reliable brands in the industry to deliver the best possible upgrades for your rig. GM Duramax Fitments: 2006, 2007 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.