just a regular flat tappet the top end on this motor has been done befor when i took it apart the gaskets were still lookin new (color blue) id say from lookin at the gaskets they only had between 20 n 30 thousand on them. im switching cams out in them though even though they r both the same do to the fact if it has been switched from roller it may very be an aftermarket cam....... i hope so
