1976, 1978 GMC C15 6.6L V8 4BBL. 1975-1978 GMC C15 7.4L V8 4BBL. 1975-1978 GMC C15 5.7L V8 4BBL. Notes: Carburetor Gasket -- Composite. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
