I had a block that had a very worn lifter guide. The lifter would rock. In this case, it only wore out the lifter. We ended changing the block. The remedy would have been to hone out the lifter guide, and sleeve it. Not really worth it as it was a 350, and blocks, then used to be stacked like cordwood.
Lifter bore alignment is one of the things I check before a rebuild now. I used to just drop new lifters in.