Any ideas on this 340 block ?

AJ/FormS said

It's been said and done that a 318 will go to 4.04......

I too have a few 340 blocks, collected in the 70s; all standard bore, all low mileage, all running when pulled.

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Would you please take the time to list the casting dates and vin numbers of the 340s you have? Guys are out there trying to find and reunite engines and transmissions back to the original car they came in.