20 miles and some more on the backroad Sunday and all appears to be well with the Hellcat running good. Tis a mystery what was causing that knocking, rattling, thumping sound after the head gasket was replaced several weeks ago. At times it would raise in tempo and sounded like the valve train. I thought maybe it was the clutch came loose so I took the side cover off and no problem it was tight. The more it ran the better it got. Maybe the cam chain tensioner. Whatever it was it has completely disappeared.
I discovered the other day if you click on these IMGbb pictures they will load in another window, click full resolution, and click on spy glass one more time get full resolution detail.