Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build 
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Head Gaskets

Duramax head gaskets seal the cylinder head to the engine block. They stop leaks of coolant, oil, and combustion gases. These gaskets keep compression tight. They maintain engine pressure for reliable performance.