Todd Kelly from Nissan Motorsports is here to give us a tour of the Nissan VK-56 that powers the Nissan Altima that debuted in the Australian V8 Supercar series this year. The teams have faced a big research and development challenge since the VK is pretty different from what Holden and Ford run in the series in that the blocks and heads are aluminum production units and use dual overhead cams instead of pushrods. Watch the video to see what else had to be done to make the engines race ready: