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This is a GN1Performance "ALUMINUM HEADS" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. The heads feature stainless valves. these are for competition use and ready to bolt on. They also include the roller valve spring upgrade kit.
This item is in stock, please call for more information if needed
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