360 short block suppliers??
Terry- In factory heads I use stainless valves that are already back cut. I know stock type valves will respond very well at low lift with a 30*back cut on them, especially using the throat cut as part of the 5 angle, but for the most part, I dont run stock type valves, and I always replace used valves. The problems are more with the guide and seat work, rather than the valves they use, and I dont usually have the valves touched other than cleaning.
CarCrazy, The vast majority or problems I've heard of were in big blocks, and Hemis. Maybe it's the rule of numbers. Every MP Hemi I've known about firsthand (friends buying them) have had issues. Some really major. I dont have anyone I personally know that has bought a big block. The vast majority of the 360 crates I know have been fine. I'd buy an MP crate "LA" long before I bought any AutoZone or similar mass rebuilders' product. My first choice is always to have a core redone myself tho. You should need a special flex plate. All other stuff should attach the same.