Starter cranks hard after engine get's hot

[tmoss]

This is a "heat soak" problem - my car has stock exhust system (except for catbacks)/stock starter and I have the same problem when it's real hot outside and I sit in traffic. Stop open the hood for 10-15 minutes and it starts back up. Had the same problem in my 67 Camaro too. Shielding the starter from the headers effectively is all you can do. I put ceramic header wrap on the Camaro and pretty much stopped it. Ceramic coated headers would go a long way in reducing the problem if you don't have aftermarkets on there already.