Here's an Australian company who have come up with a repair process for S65 blocks with cracked main bearing supports. "In this video, we provide a deep explanation into an even more common S65 engine failure issue that you may not have thought of. We all know the rod bearings need addressing at some point. But, has anyone ever thought about the main bearings? Well, after seeing that the last 5 engines that've come through the workshop have all been seized due to main bearing failure, we sure have. But, don't worry. We have a solution."
BMW M3 S65 MAIN BEARING FAILURE! Rod bearings trumped by main bearings.
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