I had the engine in the 66 GS rebuilt. I am trying to find out if this is the original engine. I am trying to decode the block numbers. From what I have been able to find out, the last six on the block should match the last six on the VIN. The casting number is attached. The last six on the VIN are 300548. Am I looking at the correct area on the block?
I've been looking for the Engine / Vin number on my 67 Buick Riv GS. Where would I find it? Any help would be appreciated. I found the numbers on the head and manifold but where is the block?