I just went and drained the oil. I filtered it through a coffee filter and ran a magnet through it. I didn't see any metal at all. I think my cam is still alive. I pulled one of the valve covers and the pushrods all had a bit of tension on them. They weren't loose at all. I did notice that three of the four sets of rockers had play from side to side on the shaft. One set (third from the front) were tight together. The other three sets had maybe a 16th of an inch side to side play between them. I checked and they are oriented correctly. The correct spacers are on the bolts. I did buy these off ebay because I didn't want to remove the set I had on the existing 318. Could it be the rockers are a "frankenstein" mismatched set? Just looking at the cam specs I don't see why the stock rockers won't work. I'm by no means an expert but I have head the stock stuff is fairly stout. Am I misinformed?

Here's the cam info:
Lift at valve .475 in. .494 ex
Rocker ratio: 1.500 in in. 1.500 ex
Duration at .050 Tappet lift: 220 in. 226 ex.
Duration: 265 in. 271 ex.