No, it's not a 440... The ads are wrong, it doesn't have the little block of metal on the top left front of the block. We think that it may be the original 400 still...
We have to look into it better to verify...
I forgot to get a picture of the fender tag. He wanted me to post it for someone to decode. I'll have to get him to take one and email it to me so I can post it.