Seller notes

GM 5.3L, Engine Code LC9, Aluminum Block, Active Fuel Management, Without Flex Fuel, Cathedral Port Heads, 2007 Sierra/Silverado is not Classic trim Level.Any item shipped outside the 48 States will have an additional shipping charge. Contact us before purchase for the cost of postage.No gaskets, seals, rings, or bearings are covered by replacement or return policies. Please replace such items as required for proper installation....

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