Ok here the story built a 355 put about 1000 miles on it and it droped a valve but was shut off immideatly. I took the heads off had the valve replaced. Looked at the piston and it had a minor scratch on the top i didnt see any cracks. put it back together and had it on a firing stand when we fired it up it blew a little smoke out of the derby exhast stacks. ran great shut it off and let it cool for the night. went out the next morning and fired it up and oil was raining out of the headers. I thought maybe some went wrong with the piston but i dont think thats the case b/c its blowing out both sides. Maybe the valve guides went bad? Im just lookin for some opinions. Maybe im not lookin in the right place? thanks


Blaine