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Originally Posted by w00t692

Search for clutch causing crankwalk. look through the first few pages, note how every link is ACT.

It's ridiculous, but it's just the fact that most thrust bearings on engines aren't made for a pressure plate putting a little over 2 tons of force on it.

i think in general crankwalk is unavoidable when it comes to high clamp loads.

the bearings those cranks sits on are radial bearing with limited axial load capability. thus for race application, high clamp load would be fine if the engine is being rebuild frequently. however for everyday longevity perspective, no radial bearing can withstand those higher clamp load fatigue cycles.