Thanks for the help guys.
He is on a tight budget. I raised my kids right. You don't buy a car if you can't write a check for it.
This is the kit the seller bought for the car; then took it to a shop to do the work:
https://www.ebay.com/itm/Complete-AF...oAAOSwgnFdQHJi
So, at least I know it is a GM camshaft and lifters. Timing chain was also replaced, which has to be a good thing.