Doug's headers and mini-starters
The problem is with the bottom connector between the two parts of the starter (solenoid and motor). The suggestions above all look to be the same as what I have.
I'm not sure a dent will give me enough clearance to not cause problems. Sure the header will go on, but how much clearance is enough to get away from the heat.
It looks like the problem would go away if I use a full-size starter, but I don't know that for sure.