broken motor mount (anyone run with the other 3 only?)

We were putting the motor back in the car and chipped off one of the bolt flanges on the block(about 1/2 inch off the side) (don't ask, lets just call it - crane operator error).

We could thead a bolt into the hole and it bit real tight, soooooo, we continued on with the installation. I'm thinking we're OK but I was wondering if anyone else has run one this way?


Thanks
Al