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Amazing. I wonder how it`s possible to strip all the headbolt threads. If I stripped one, I`d go back and fix it. Why would you strip the next? And then all?? Also, it requires a LOT of force to pull out all those threads. Crazy.
If you have a drill press you can rebuild those threads yourself. It`s aluminum, not a big deal to drill them and then you can insert timesert, helicoil or similar. However, I don`t think I would go with this option. If one of the threads won`t hold, you will only find out when you tighten the heads down, and if it doesn`t work out you will have to start all over, which is not so straightforward on this engine considering its complexity.
So I would rather go with a new bearing carrier. I`m not sure if the crank and carrier are matched. As for the bearings, there are no different size categories, they are all the same, so I don`t see why the carrier and crankshaft would not be interchangeable, but it`s possible that they are machined together.
Look around in my build thread, I uploaded some pictures when rebuilding the crankshaft/carrier complex, might give you an idea about what to expect.
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