SEO Hosting Value?

I work for a brick and mortar business, who own 3 sites that rank in the top 15 for their main keywords. However I realized that all three of these are hosting on the same block of Class C IPs.

Would these sites see any boost in rankings if we migrated two of the sites to new servers? They are all interlinked, sort of like a mini-network of related sites.

For such a small network I doubt that ips will make a difference. There was a post by google that the IP thing is only for large networks. Also take into consideration that it is not only the ip but also the whois information. I would concentrate on quality of hosting, the speed of your site as google sees it makes a small difference.

No it wouldnt make a difference unless you where linkin building heavy off your network for example I have six pr4+ sites all run on there own network so I can pass pr link juice to any site I want so each site houses my new links and links to one another. Now if I put them all under 1 network the prs stop working as link juice and google just registers it as 1 site link juice not separate pr linkjuices since there all under 1 network hope that makes sence.