I found this on a FB group that I'am apart of and thought it may lend some insight into GT350 Engine failures or should I say the lack of.
https://overrunautomotive.com/articles/gt350-engine-failure-by-the-numbers/?fbclid=IwAR2m67DlMDmsS9qIEVjTqQgLZmNO8e83IcYpHZugarjthQAu6KJ5-Ac-UK8