I had a 66 Vette back in the…
I had a 66 Vette back in the day. I had a ticking noise after I would really floor it, and go thru the gears. Turns out there was a flaw in the part that the fan was attached to that also had the belts on it. They replaced it twice then when that didn’t work they reinforced it with a small plate behind it, and no more crack, and end of ticking noise which was coming from crack.