I pulled them off the engine last night. They are fairly clean, but they have been run on. there is some carbon on some valves. They are already cut for, and have Teflon valve seals on them. I haven't taken them apart yet to see if the guides were sleeved. It's hard to tell by looking inside the ports at the guides. The springs look to be either stock GM hipo/Z28 spings. Nothing I would reuse. This engine did sit for several years without running when I got it. but it was inside a garage. There is no rust on the cylinder wall, and the Chambers look good. I personally would pull them apart and at least see what they "really" look like. If I ever get the time to "clean off" the inside work bench, I will tear into them.
