Originally Posted by chip-3door
If they did start coming loose, i would expect you to hear a rattle like a lifter was shagged as the clearance would be too big suddenly, i guess if you were really unlucky the cam itself could snap too, but even that rarely result in any bottom end damage
Yes, you will hear a rattle that increase with the rpm.
Had mine helicoiled and the rattle came back a few months later so the second time I had bigger bolts fitted intstead.