Unfortunately your only proper option is to replace the crank as the snout cannot be drilled out. The torque on the crank bolt is too high for any thread repair to hold even if you can drill it out and repair them.
I am attaching the entire process for the crank even if you don't need all of it but clearly you need to pull the motor to do this.
Sorry to not give you the news you wanted but this is what would be required.
Let us know if you have other questions. Thanks
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Wednesday, December 2nd, 2020 AT 5:48 PM