Difference between 67 & 68 radiator for support?

[clemul]

Difference between 67 & 68 & 69 radiator core support?

I'm am looking to buy a complete 26" radiator core support to complete my 67 Gtx clone project. I have a lead on a "68 or 69" core support.... Amd lists different part numbers for these years. What are the differences if any, can I use the 68 in my 67? Thanks for any and all help...

 

[moparmarks]

Don't always go by what AMD says. 66-69 are the same. 70 is different.

 

[clemul]

Thanks for reply... The combined knowledge on this board is amazing, became a gold member just to try and give back a little of what I've got from these boards... Thanks again for taking the time to respond..