this issue has been super resloved......sorry for not updating if anyone is still watching this thread or is curious. I haven't been on this site in awhile. When the crankshaft was balanced (by the only other employee of the machinist whom has since retired) weight had to be added. It went on to the rear counterweight and the short block was wrapped up and sent to me for final assembly. I installed the came oil pump heads distrib. etc. got it running. The weld on the back of the counterweight was ground down but stuck out enough to just touch my oil pump drive shaft. I couldn't tell by turning it over by hand as it would barely even touch it. we're talking a couple thousandths. By the time i broke in the cam for 3 min. it had had enough of that business (got into a harmonic with the crank and got worse and worse.) broke the pin off the oil pump, the tangs off of the oil pump shaft . broke the guide for the shaft, the bottom out of the distributor then dropped down on the oil pump at an angle, was hit by the counterweight, candycaning it and the next time around hooked the rod with the oil pump shaft and broke the rod. all within a bout a second. the last part is the one i heard. as i was getting out of the throttle from hearing a slight tic of all the other precursors going wrong.
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