Convoluted qusteion

[brighttail]

So I have a Founders Edition 1080TI GPU and the EK-FC GeForce GTX FE nickel waterblock found here:

https://www.ekwb.com/shop/ek-fc-geforce-gtx-fe-nickel

 

I want to get another card that can do SLI with it and use the same type of Waterblock as I have another one of the same waterblock coming.   I have checked the "compatibility list" and found this:  EVGA EVGA GeForce GTX 1080 Ti SC Black Edition Gaming 11GB GDDR5X (11G-P4-6393)

 

That shows that this 1080TI has the same FE PCB as the original Founders edition card despite looking like this: 

So I have looked around and found This card: 

http://www.canadacomputers.com/product_info.php?cPath=43_1200_557_559&item_id=105616

 

I think it is the same card  both ending in 6393.  My question is two fold. One should I be able to use this waterblock on this card and 2, can I SLI with a normal Founder' Edition 1080ti?   The folks at Canada computers couldn't figure it out.

 

 

 

[ILiketoMobit]

I think the waterblock is ok, But I am not sure about different company SLIs...