Question Will lga 2011-3 water blocks fit into lga 2011?

Satan-IR

Splendid
Ambassador
I think the sockets are the same size and mounting point distances are the same and the pinout and electrical layout of the two versions are different.

Best thing is to check on the cooler manufacturer's website.

If there is no exact information (unlikely) you can ask them by giving them the name and model of the mohterboard and those of the cooler.