Decode L78

[ZiggyL78]

I sold my 396 Chevelle today and picked up a L78 Nova. I called my insurance agent to change everything over. She told me it was a SS396 and then told me it was a L78. I knew all this but how did she know? I didn't think you could decode all that from the VIN#. The only thing that makes sense to me is this insurance company had insured this car before. The second surprise was when she told me the appraised value! Yikes!