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Number Crunching / 400 casting code
« Last post by 81Resto on April 30, 2024, 04:14:34 PM »I have been searching out a Pontiac 400 block. I had a couple of near misses, responses saying it was just sold. A new one popped up and talking to the seller, he gave me a casting code of 039962 and y4.
I know y4 is an engine code but can't seem to find out what the other number means. I looked on some websites thinking he sent me a wrong number, it doesn't match what I can find for heads, intake manifold,
exhaust manifolds... For the hell of it I put it in google and the AI part of the search said it is a sbc. So I found some other websites for chevy and cannot find the number there either. At this point
I am just curious. Also looking to avoid the 500557 blocks based on advice from some books I bought about building a Pontiac engine.
I know y4 is an engine code but can't seem to find out what the other number means. I looked on some websites thinking he sent me a wrong number, it doesn't match what I can find for heads, intake manifold,
exhaust manifolds... For the hell of it I put it in google and the AI part of the search said it is a sbc. So I found some other websites for chevy and cannot find the number there either. At this point
I am just curious. Also looking to avoid the 500557 blocks based on advice from some books I bought about building a Pontiac engine.