OK, I just got this info off the PY forum, from a guy who has a contact who works at Comp Cams. It seems that most of the CC Pontiac HR lifters are now made by Shaver, and they are good quality. And, they are said to be the only HR lifters with the higher Pontiac oil band. All others are said to be Chevy lifters, with Pontiac link bars.
That's the good news. The bad news is that when they are out of Shaver lifters, they put Morel lifters in the box. The Morels are good lifters. They just don't have the high oil band. So, I don't know for sure which lifters you'll get in the box you order.
Guys have been using Chevy roller lifters in Pontiacs for years. Many have experienced no problems. But, as mentioned, at least one Pontiac engine builder grinds a 1/4" groove to connect the lifter bore oil hole with the lifter oil band. Some feel this is not necessary. I'm not an engine builder. So I don't know.
If I was going to buy some HR lifters today, I'd try to find some of the Shaver made Comp Cams lifters.
But, if you can proove that your failed lifters are the Shaver made ones, then I wouldn't blame you for not trying another set.
