Originally Posted by Csnow99gt
No cam swaps, but a few years ago I warped a head and took to machine shop and they were able to shave them down and repair them. The bottom end should be stock, my car has now about 79000 miles
ohok, well reason I ask is because I did a cam swap on mine and I used new bolts with locktight and even Tq the cam sprocket bolt to spec. Well mine started to do the same as your when cold and once warm went away. Then, it did it all the time and this was six months to a year later. Long story, but it was a fault cam bolt that backed out over time and the sprocket was moving back in fourth causing the noise I was hearing. I was get a hearing scope, turn the car on and move the scope around to see if you can isolate the noise but I would def agree with dmg1092 though.