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Duramax Valve Cover Kit\u003c\/h2\u003e\n\u003cp\u003eDress up your GM 6.6L Duramax LLY\/LBZ\/LMM with these billet-machined aluminum valve covers.\u003c\/p\u003e\n\u003cp\u003eAvailable with or without factory accessory mounting points, these valve covers are precision machined from billet 6061-T6 aluminum stock on five-axis CNC machines. 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