Well I pulled the valve cover and readjusted all the valves. the sound still persists, no broken springs and valve travel is consistent. it sounds like its coming from beneath the head, I'm banking on a bad valve or collapsed lifter. I'm about to pull the rocker arms off and push the rods down to see how much travel the have. Hydraulic lifters should be able to to give me a little play when I press the push rod down. it sounds awful.
Last edited by 67MercCat; 07-18-2012 at 11:52 AM.