[HWYSTR455]

I believe the comment was in reference to the hyd rollers, and just to say, I've heard people having failures using them. Those I've talked to all have mentioned that failures occured at higher RPMs, which I too question their' longevity.

As for factory hyd rollers, and why they don't see the failures, I would say most likely due to RPM being limited by the grind, and maybe some due to the design (suspect the Pontiac aftermarket hyd rollers are a bit behind the curve).

As for maintenance, I'm not clear as to how or why many feel solid rollers are high maint. In my experience, the solids that I've run, maybe every 25k or so I'd check them, but have done so pretty much just for piece of mind. The previous 455 solid roller engine I had in the 'bird I got about 220k miles out of, with only a valve job at about 120k.

I recently had the choice of hyd roller or solid on a 'street' engine, and chose solid, because I felt more comfortable with the longevity factor. I'm betting in time the hyd rollers will prove themselves, and my next chose may include them. Until then, think I'll stick with the solids.