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OldRide Answers Home Using OldRide Answers Ask a Question   Browse Questions In: AMC Buick Cadillac Chevrolet Chrysler Dodge Ford Lincoln Mercury Oldsmobile Packard Plymouth Pontiac Studebaker Volkswagen Other Makes Classic Trucks  General Topics General Questions Help Identify Classic Car News General Restoration Vehicle Maintenance Site Suggestions & Comments          Search Questions:    lhamdist      how can i find out about original engine numbers for a 1957 chevy belair?   posted: May 6, 2008       Answers (3)   pontiacsd      Unlike Pontiac, Chevrolet did not stamp engine blocks with a corresponding matching vehicle vin. The best you can do is a properly date coded block and plant coded block. For 57 engines were stamped with a serial number which broke down to Unit Number, Plant (F=Flint MI, T=Tonawanda, New York), Model Year and finally Engine Type. If you have the engine post the block numbers and we can help decode it, you can find the numbers on a pad, front right hand side of the block behind the water pump. posted:  May 7, 2008   lhamdist      thank you for responding here is the engine number that we have. F620FC once decoded will we be able to tell if its the original? posted:  May 7, 2008   pontiacsd      F620FC - Decodes too: F = Flint, Michigan 6 = Month (June) 20 = Day (June 20) FC = 283 - 8 Cylinder with Powerglide and 4bbl. The last piece of the puzzle would be a casting number block. Again, there is NO definitive way to tell if the engine is original to the car... posted:  May 7, 2008

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