170 /6 to 225

Hopefully this thread is less of a headache for everyone involved then the last one I posted. Which by the way thank you to everyone that helped.

Molly officially has a busted rod.

That being said what changes if any do I need to expect and/or parts need to purchase to go from 170 manual to 225?

What should I do/fix/etc. while the motor is out to prevent a headache of fixing later when in?

Does anyone have a running motor laying around that they would like to sell or get rid of in the kansas area... as Craigslist leaves me weary.
Thank you in advance!