I like the idea. But I dont think its possible. Theres the small oil return port under the journal that may cause an issue, it returns the oil from the seal side back to the inside of head. Would have to bore the hole past that little oil return port. But might not since it would have to be a needle cage type bearing, oil would just return into the head because it open. But might have to find a different seal. It may need a larger OD. I'll have to think about it some more.
(Pic is from the inside of the head to show that oil return port)
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