Thanks Frosty for you input. Since I Posted this and after your response I had ordered one of the 1.52 rockers to see if this would work. As you know, retailers do not have information on length / height/etc on a rocker arm. It turns out this rocker is to long and goes beyond the valve stem. I Did finally find the correct rocker at Kanter.com. Exact rocker/ rocker ball and 5/16" nut. #RA44044K. Thanks again for you input.