lol, i figured that people would have a problem with that and i completely agree. You never know who your dealing with on the internet. I have been a memeber of yfzcentral for some time now with the same screen name. i know that might not prove anything either, but i just thought i should mention it.
as for the top end, i know that they are stock cylinders and the pistons i pulled out of them are 69.5mm. if that means that they have a big bore kit in the stock cylinder then yes. i'm not much of a mechanic, but my buddy is and he told me thats what it has.
i'm located in miami,fl