Can I put a 96 5.2 block in my 68 Fish?

Thanks Rockerdude! (cool name BTW)
I actually did not find any other info on this site in regard to this type of swap?? I can't believe no one else has done this or asked about it. I do suck at searches but something should have turned up. Well.. I think I will go ahead with this 96 5.2. I will work on my 340 over the winter and hope the 5.2 holds up. Oh, Yes, I already have an electric pump in it and, the motor for sale has a manifold. I'm gonna swap the manifold for a different one though. It is an airgap and I will be driving it through the winter here in Fort Collins Colorado. I need a non air gap if any one wants to trade. I don't want to go too far with this motor (bunch of mods) as I will just be selling it in the summer next year and put my 340 back in.