will it hurt. whats your opinion

I don't think it would hit the ridge if it were installed, but I have no idea how you would get the piston and rings back in the cylinder with the ridge there.
well that is what I am thinking and I guess I am going to buy one and take it out. That would solve all the problems here but the only question is which ridge reamer would be a good one to use. I have never had the pleasure of using one and the one I saw on the utube video I think it was an OEM 27030 isnt available anymore. Are they pretty much the same. Harbor Freight is close by.