Technical 63 chevy radiator core support question

Could someone tell me if there's a major difference between a 63 and a 64 core support? Could the 64 be modified to work on the 63, or are they too different to pull this off? This on an Impala. Thanks.

 

I'm no expert, just a '63 owner. But, I'd guess they are the same. I've been told the fan shrouds fit '61-'64, so it would make sense that they are the same.

 

OK, so they do list separately, so maybe they are not the same. Like I said, I'm no expert.

 

Nope not the same!

Denny

 

My 64 prospect part is too far away to see the difference, so I'll keep looking. Thanks for the reply. Glynn.