I remember seeing a post some time back but can't for the life of me find it and searching for LS6 turns up mainly threads on a TH400.
Anyway the thread mentioned a LS6 Registry web site that, unfortunately, failed to develop as the URL was available for purchase. I've purchased the domain name and set up a site at
http://ls6registry.com. I've been in contact with Rick Nelson and he's fully supportive of the effort and I know he has a lot of data on the LS6 cars still around. Unfortunately he's in the process of moving and can't be too active right now.
So, if any LS6 owners here would like to avail themselves of the registry, please give the site a visit and maybe pass the web address along.
Appreciate any and all efforts to support the registry.