If that lifter came out of the same engine of a friend that you posted about recently (cam chain tensioners), I'm afraid your friend has a whole lot more to worry about than tensioners and lifters. I'm amazed the engine continued running long enough to eat up that roller like that, before contact with the lifter body finally broke out that big chunk, without the rider knowing about it.
Jerry
No, No I fear I am unintentionally misleading you. I'll tell the story.
My pal, the one with the half worn tensioners in the Heritage Soft tail Decided to replace them with the Gyco ones. He contacted the USA supplier and they directed him to the UK supplier. Having contacted the UK supplier and ordered his stuff he got talking to him and, on my behalf I suppose, asked him if there was any residual problems with CVO 110 engines. the UK supplier then said yes there are lifter and valve spring issues and copied the above photograph to my pal. I assumed to demonstrate the extent of the problems that can occur in CVO 110 engines. I assumed, not knowing any different, that the lifter was out of a 110 engine he had repaired. However it seems, from your guarded comment, that perhaps the lifter is not out of a 110 engine after all. I apologise if this is the case, no intentional misinformation was posted by me. I just wanted to create a discussion around the subject. Anyway, although I have not got any issues at present, with the bike that is, given that it has done 16k miles I intend to replace the lifters and valve springs. After market lifters and "beehive" valve springs. The intention being to reduce the valve train load and hopefully pre empt any problems with cam bearings.
Again sorry for any confusion. JohnT