RJ I just finished a clutch job on an 8N about 2 weeks ago, so these thoughts are still fresh. There are no cross drilled holes in the clutch cover bolts. They are 5/16" by just a hair over 3/4" long with a bit of a shoulder. They were installed with only a lockwasher. The one I took apart had held together for 60 years, so I would not have too much worry, as the N engine does not exceed about 2500 RPM. I thought that it would be good to replace with new bolts, so I called my FNH parts man. Today's price (yes today!) is $12.32 each x 6. None in stock, and they haven't sold any for some years. Somebody on this board had mentioned the extreme price last winter, and had posted a JD part number for a package of 6 such bolts for about $8. I checked with my brother who restores Model A trucks, and Ford used the same size non drilled bolts on the clutch pressure plates. The Model A bolts fit the N series clutch. I think you are good to go! Paul in MN
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