help annoying pop in exhaust

Your welcome! Its a pain. in the A but if tou have a real good magnet & the lifter hasn't been in there for a long time you can remove rockers & push rods & pull that lifter & see if the bottom of it is now a shot glass! I did the same thing on my 1st cam swap back in high school (bout 20 yrs ago! Lol) Let us know what you end up finding!

Like this? I pulled this one out of my 318 on Saturday. Sorry if the pic is upside down, my iPhone isnt being cooperative.