UPDATE: Okay, I got a small case of the while I was at its, and took off the thermostat hosing and the upper radiator hose. I ordered all new seals and hoses, since, you know, I was there. Now here was an adventure. The bolt was so corroded into the thermostat housing the head snapped right off. OH JOY! Three hours later and some delicate tapping with a rubber mallet I got the housing to loosen it's death grip on the sheared bolt. Now with only 1/4" of bolt sticking out of the head, I had to say my prayers to the good Lord above, said a few to Budda and Allah, just in case they were car nuts too, never hurts to be thorough, and clamped a vice grip to the last remaining threads to see if the bolt would unscrew. You know many things go through your mind when you attempt something like this. You have this feeling like you know there is a smarter way to do this, but at this point your caveman instincts from the Pre Cambrian period surface and you just want to pick up the car and throw it. Long story not so long, the bolt nicely unscrewed. Thank the Lord. OR Allah, Or Budda, hell I even thanked my wife. Kept cleaning things up, put some new paint on the thermostat housing and the heat shield, and started to do some final thread cleaning on the heads. One question folks. I asked Ztherapy to block of the water passages from the intake. So the water line that does form the thermostat housing to the intake, I assume I can just plug. Also, I should be able to remove the line running around the back of the engine as well. Is this correct. From the looks of it, the coolant does not need this flow path to function correctly. Any thoughts. I have to go see if Black Dragon or MSA sells bolts for the Thermostat housing now. I love working on my car.