Well fellas I really do appreciate all the insight.. The more I've looked into it the more Im thinkin I have a bad lifter or spring but almost certain it is a lifter... I've gone through quite a few videos and doesnt sound like a bearing or rod.. Anyways I've determined the sound is loudest on front cylinder head so gonna pull the plugs and go from there.My question is will I have to pull the LIM to get the lifter changed if so i might as well do the LIM and replace all the lifters right..