Ironman,
Thank you for the reply, I have been looking and found: tap the casting and install recessed set screws or 1/2 inch freze plugs the beat in cup kind or silicone.I think I may try the freze plug type. I may be in for a rod and new piston because when I took another look at the cyl wall slight scratches in one spot? the outside of the block where the balance gear pins are were has no visible cracks just the upper pin boss destroyed on the inside.
Thanks again Bill Aylor
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