1990 GMC C6000 7.0L V8. 1980-1990 GMC C6000 6.0L V8. Notes: Engine Intake Manifold Gasket Set -- Except High Performance; Composite; Without Restricted Crossover; Without LPG Conversion. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.