Quote: “We are excited to launch our new “closed deck” engine block with Penske Racing Engines for the Sprint Cup Series at Martinsville this weekend,” said Dave Bailey, SRT Motorsports Engineering. “We are very pleased with the performance and durability of our previous ‘open deck’ block, but are introducing design changes to help improve head gasket life and future capability for power increases. The post machining and processing time at Penske’s engine shop will be significantly reduced. We will also take advantage of weight improvements that come along with the base block material changing to “compacted graphite iron” similar to the other manufacturers. We worked closely with NASCAR to ensure the changes are compliant and have competitive parity.”
I imagine these are pretty rare though as that quote is from 2012 and they hung it up at the end of the 2012 season (after winning the Championship with the engine)
