Did I blow my Kenne Bell?

[07gt6816]

yeah id say pop the drivers side valve cover off and take a peek at all the followers.

 

[05mustang_TT_charged]

+5, it sounds likes a lash adjuster may have collapsed or a roller locked up on the follower...I would pull the cam covers off and check in there for any broken, missing, or out of place parts..

 

[jgert2005]

Yep pull the valve cover. Videos are hard to determine what the sound is but, a collapsed adjuster and scoring of a cam is a possibility. Hope you find what it is and keep us posted.