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post #1 of 1 (permalink) Old 06-18-11, 12:18 PM Thread Starter
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Rear main bearing issue

Hello, I have a 390 FE block that I'm assembling, but I've noticed that the rear bearing doesnt seem to fit right. However, everything I have researched tells me I have the correct bearings, which are Clevite 77 MS-863 P-20 (.020 undersize crank). The issue I'm having is that it seems like the thrust sides of the bearing are too large (as seen in the photo). Has anyone ever ran into this? And if so, is there a common fix? (ie. filing the bearing down) Thanks for your help!

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