This is something else that is a bit of a mystery but apparently facelift cars from 2008 on had revised/different blocks or there are some reports it is the same block as the RS. Personally, I haven't a clue if any of it is true or rubbish but mine will never run more than 300bhp (famous last words). There are PLENTY of cars pushing circa 300bhp and done so for many miles with no issues which FAR FAR outweigh the number who have suffered cracked liners. There was a dodgy batch run in 2007 at some point with cars that cracked liners even on standard engines.