Originally Posted by Vladi

No they are not. They are generally regarded by just about everyone and their mother as 565cc. I have never heard or seen anyone refer to them as 550's. Ever. In fact, many were tested to 560-565 with flow charts and actual data to back it up.

The difference is indeed negligible, and yet in your typical douchebag know-it-all fashion you took the time to point it out, so I'm taking the time to point out that you're wrong, and that your garbage "knowledge" is not only wrong but also unnecessary.

Good day sir.