I know that its always said that you can braze intake ports to fix cracks, pinholes, etc because of the lower temps found in the intake port....

...but when you are taking about exhaust ports you CANT braze them due to the increased temperatures found there which would soften the bronze and it would do little to prevent cracks or pin holes from seeping water.

Now....

What if you had an exhaust port that had been opened up a tad bit too much and you would want to fill it up some by brazing and then reworking it. This is at the very end of the port opening where the gasket sits. Seems somebody port matched and went a bit overboard and enlarged the port opening a bit too much.

This port doesnt have cracks or pin holes, I just want to fill it up some at the very end of it and port match it again.

Will bronze hold up or will it melt????

Any other ideas?

Thanks!

Domingo