Header seating..

I just had this issue, and it was leaking so bad it sounded like a lifter tick. Get some remflex gaskets! No sealers or anything. I put them on and no leaks, been driving with them for a few hundred miles now without a leak.

Exactly !!

My hemi in my RAM snapped a bunch of exhaust manifold bolts ( i guess this is common) and it too sounded like a lifter problem..

Thanks
Ian.