For sale http://pitstopusa.com/i-5063043-cran...-arm-stud.html
Don't ask I only have 15 one must have jumped ship over the years, they have very few hours maybe 15-20. I used them the tail end of one season before I built to my stroker motor. You can get one more or just do the exhaust valves to help out those little valves.
$75 plus shipping