GMC Sierra 1979 Automatic Gasoline GMC 454 engine, disassembled from a stored vehicle. It can be converted to a carburetor. The engine has a single belt with all its accessories, and the disassembled part is also available. The engine is guaranteed, and its mileage is 222,000, real mileage. We have added a picture of the car's odometer in the last picture to clarify its mileage.