I wanted to clean out the header bolt holes, they had RTV in them. I bought a little Dremel wire brush and had at it. Well the brush part with a small clip broke off way inside, maybe in the water jacket! I tried everything to get it out, even a little dental tool, but it was to far in. Since it was a cheap wire brush do you think it will rust away or am I in real trouble? Its way past where the bolt ends so I can still bolt it up. Whats your thoughts! Its a 1969 RR with a 383.