This is a 2012 Chevrolet Duramax long block with pan, with no visual defects. The engine turns over nicely, and oil is clean of debris or metal. It is a good start for a rebuild job, or is a source for block or heads. Your satisfaction is always guaranteed. We are fast shippers, and good at getting great rates. Questions? 800-850-6898, in and out, 502-493-8523, nights, 502-262-1212, cell.