This engine should have been to the machine shop two weeks ago, but I was not comfortable with the amount of dowel pin engagement. I had to locate some correct size pins, I didn't want to go oversize pins as that would require reaming the block and the caps. I finally found the correct size dowels and got them installed today. There is only one company I could find that provides the longer factory size dowel pins for a Pontiac (Precision Automotive Specialists). While installing the caps I was going over the surface with a small stone to remove any burrs that may be present and found cracks around the dowel pin hole in the rear main cap. Not too happy about it but sure glad I found it. Now I need to get a new rear main cap.
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Tim Corcoran
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