Hello all. Got a question I'm hoping someone here can answer. I recently bought an 81 that has a non original 350. Just got it running and trying to figure out what's what with the engine. The short block is a 71 (CGC suffix), but the heads were reported to have been swapped 2 owners ago. They are 882 heads with the casting ending with a 4. Anyway, I'm trying to figure out if anything was done to the valve train. I'll hook a dial gauge up to a lifter maybe this week or the next and see what lift the cam is to identify if its stock or not. But my concern is the valve springs. I've been out of gen 1 engines for quite some time now and cant remember if the stock springs had dampers or not. I also thought they had a cap on top to help control oil. I don't have a picture handy, but if anyone has any info about the damper or caps, or lack of exhaust rotators that would be appreciated!