Guide to Regrinding Camshafts

Everyone everywhere has had interruptions. If you think it's just you , then your out of step with what's happened.
Here's a post from a US cam supplier: This post is now over a year old, and as far as I know most of the restrictions have lifted by now..

"It's crazy.
I only deal with U.S. suppliers, so I don't know how the import inventory is doing.
There's 3 major Cam Core suppliers in the US. All their manufacturing facilities were closed down for 6+ months, and all are having issues, getting employees to come back to work.
While they weren't manufacturing, they were selling what inventory they had.
All the cam companies bought up what they could, but had to use most of their inventory.
With the cam core manufacturers inventory depleted, and the cam companies inventory depleted, the core manufacturers are having a hard time keeping up with their orders, and being short staffed isn't helping.
I have cam cores that have been on order, for almost a year.
I've sold almost all of our HARDKORE Tool Steel cores, because they were only available option.

As for flat tappet lifters, it's about the same.
I only sell US made lifters, and the largest manufacturer on flat tappet lifters in the US, was closed for months. While they were closed, the U.S. foundry that made the lifter blanks, went out of business. This meant the lifter manufacturer had to find a new U.S. foundry, and pay to have all new tooling made for each part#. This about doubled the cost of the lifters.
The supply for .842" lifters is getting much better, but .875" and .904" are still taking months to get."