MFJ66VET

15 used roller rocker arms (stud mount rockers). They are gently used as you can see in the picture. I do not know what they came off of as I bought them with an engine. The machine shop indicated that they will work on a small block Chevy. I was told that they are a 1.5:1 ratio, and are 7/16's inch diameter. I can not verify if they are 7/16's inch in diameter or not. They look like Harland Sharp Stud Mount rockers ( http://www.harlandsharp.com/sbc_716.htm ) from what I can see. Since I do not know what your application is, then please make sure that they will work for you.

http://tinypic.com/view.php?pic=kb9n4n&s=6

This is my first try with pictures, so let me know if you can not see the pictures well.