Where can I get casting numbers from for 400 small block chevy?

405

Asked by Carter Jan 03, 2014 at 11:26 AM about the 1983 Chevrolet Malibu

Question type: Shopping & Pricing

I got a guy willing to sell me a 400 small block but I want know without a doubt that it is a
400 and I want to know exactly what it came out of originally. Anybody know what casting
numbers I should be looking for on the block and/or where I can find info on casting
numbers and other block identification methods? Thnx

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