882's, they're about the worst head put on the 350 Chevy. Just because they're the worst heads doesn't mean they don't work, though. They flow about the same in stock form as most other 350 heads, but they were cast with very thin metal, GM is cheap like that, which makes them crack prone and no good for porting because you will hit water after not much material is removed. What's this mean? They'll be fine for your stock and mild performace rebuild that doesn't require porting. Would I put them on my truck? No, but that is only because I have a pair of 062 and a pair of 339X heads that are better.