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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
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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
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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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