Machine shops and transmission shops help in Columbus Ohio?

I am working on rebuilding my original 318 in my 72 Dart Swinger and I am trying to find a good reputable machine shop to have the block gone over and cleaned (42 years of grease...oil....and crap!). Is there anyone in the Columbus OH area that can share some ideas on where to go? I will also need a good Transmission shop to have the stock 904 cleaned up and gone thru. Any assistance would be greatly appreciated.