340 Block Bored to 4.160????? Help

I aint arguing with you man, when I said my 340 runs and doesn't overheat, I was effectively signing off and saying "do what you want, I really don't give a **** as long as my car runs" the information is out there, do some research and make your owners n decisions.

Been there, done that. That's why I had no qualms about buying a used 340 block that was already .030" over and then punching it out .060" over for a rebuild. Can you do that with every 340? Probably not. Can you do it with a lot of the 340's out there? Yup.