Valve seals

Does that mean they were changed twice? Most shops won't accept customers parts.
Steve

I suppose that's what it means... He offered to let me order them from Z1, or he would. I didn't think anything of it. Their age and quality were unknown to him, regardless of their appearance. I also supplied the valves, springs, and keepers, as well as all the shims I have. I prefer this to wondering what parts were sourced and from whom.

They have to stand behind their work, that's why they insist on their own parts. Mark up of course.
Steve