Last week on Autoline After Hours they had Jordan Lee, Global Chief Engineer and Program Manager for Small Block Engines at GM. The program is an hour long, and the first 20-25 minutes are spend talking about recent automotive news. The rest of the hour or so is mostly about the Gen V. He doesn't get into too many nitty gritty details about it, but there are quite a few interesting little facts that get mentioned during the show.
There is an audio only version of the show here:
http://www.autoline.tv/journal/?cat=1513
Left click on the their link to listen in your browser, right click on it and you'll be able to download it to listen later.
Video version: