Yeah when I pulled them out they had TDC stamped on the back which is made in China... The other bearings I got actually said ROCK on the back.... I also have engn bldr's torker cam and i did his full kit. I ordered the street rv head and lce dual valve springs. I will be using LCE, Toyota, and Clevite products on this rebuild. My buddy had the same bearing failure with those bearings so he went Clevite as well.