Yes, that was at the core of this explosion, no doubt LOL.
As a reference for future readers:
This is what 68_GT's car sounded like
https://www.youtube.com/watch?v=IyToDADRWcg
and this is what another owner posted on YouTube (thanks, glock!)
https://youtu.be/1F5Kl9DVN7I
Now established it is definitely not normal for these engines. No oil pressure light ever came on, quite possibly because the system is self-adjusting oil pressure and "hiding" the problem.
Also the fact that 2 quarts of oil were lost without an oil pressure light coming on ... worthwhile to be familiar with the "normal" sounds your car makes, and be concerned when the sounds change.