Well here's the deal, I bought the whole crank kit with bearings included. The rod that had the spun bearing (#4) was replaced with a new one and all the others re used. I also added some new rings while I was at it and gave the cylinders a light hone for the new rings. All seals and gaskets were new and I am certain I torqued all the rods and caps down because I checked twice. Finished all of this and dropped the engine back in last summer.

When I asked Wayne, the person that listened to it, if it was possible that this was a wrist pin knock, he said it definitely was not. I did at one point think it was but my symptoms never matched up completely with how a wrist pin knock was described.

The engine never had a wrist pin knock before the rebuild and it only has about 1k miles on it now, only the last 500 of which it has been knocking. I suppose I should have checked the local parts place for Plastigauge

Oh well, I also ordered a 2 5/8 Sport Comp tach at the same time (MoRice). I wanted to wait on getting a tach but with all the trouble shooting I have been trying to do lately it would be useful. Also seems the only spec I can find for the oil pressure is at a give RPM and since I have no tach I have not been able to check it accurately.