Thermostat gasket leaking AGAIN!!!!

Jfive,
Clean everything. Run a tap with wd40 into the intake to clean out the threads and bottom of the holes. Clean out the bottom of the holes with Q tips or air. Put a rag in the intake opening to keep debris out while cleaning. Wrap a 4 inch long piece of 2x4 with a piece of rough sand paper. Spray a little black paint (speckle the surface) on the neck flange and a light color on the intake. Sand it off completely with the block. Clean the step in the neck that the stat sits in too. Post pics.

Take the best bolt to the hardware store, lay the threads up against the new bolt, heads facing opposite directions. The right thread pitch will perfectly mesh with the threads on the old bolt. Get the same length and diameter. If they are only available slightly longer, add washers. Test fit the new hardware in the holes by themselves to see if the head will go at least as low/close to the intake as the neck flange is thick.