Mechanical Cooling Fan broke during 6000 rpm burnout.

805moparkid said
to add to this wernt the originals aluminum and these crappy new ones are steel?

In my aging recollection, most of the old school originals were steel. Some of them were pretty darn heavy

I HAVE seen at least one come apart. About a 67 GTO had a hole in the hood looked sort of like an axe blade--from the inside. Yup. Fan blade