I have a puzzler for you. I have a 75 RWD scout that I've owned for just over a year. The 304 engine was professionally "rebuilt" about 2 years. I say "rebuilt" because the former owner advertised it as repainted not as rebuilt. It came with dozens of photos of the process, and it is clear that the engine was dismantled, cleaned, etc. prior to painting. My assumption is that the basics were tended to, but there was no machining done, etc. The engine and compartment are pristine, all new cables and hoses, battery etc. The one non stock feature that was added were headers. I had a Hamilton EFI install by the same shop the did the engine work. The engine runs great. Here's my puzzler. I was driving on a hot day, engine running fine, temp on the idiot gauge was just left of the mid point, where it typically runs. I stopped for an ice cream cone and shut off the engine while I ate. I was parked on asphalt. When I went to start it up, the starter wouldn't crank. With the key in the "on" position, gauges came on, I could hear the electric fuel pump run, everything was normal until I turned the key to start it. Then I had nothing, not a click, not a feeble attempt to turn over, nothing. I checked my battery connections, and they were clean and tight. a scout wizard that I called told me how I could bypass the ignition on the chance that it was bad. I ran into a nearby store to grab a screwdriver. When I returned to the Scout, it was roughly 20 minutes since I had turned off the engine. At that point, the headers were cool enough to touch. I tried the key again, and it started perfectly. Again, the starter sounded like it always sounds, strong, solid. Battery seemed like a brand new battery. I spoke with a mechanic friend, and he suggested that since the headers curve around the starter, the heat from the tubes might be warming the starter and or solenoid to the point that it overheats (or whatever), and when it cools, it works fine. I wrapped the starter in a Versa Shield heat shield wrap, and that seemed to do the trick. That said, I didn't do a lot of hot weather driving for the remainder of 2019. Now, the problem seems to be back (if it was ever really gone). I've had the same issue twice this week. Hot engine, warm day, all is right with the world until I turn off the engine, and then try to start it within 115 minutes of shutting it off. In both of those instances, I was parked on asphalt. Oh, BTW, I just finished a long drive, and parked in my garage (concrete floor, not asphalt). I tried starting it up about 10-15 min after shutting down, and it fired right up with no issue. I'd welcome anyone's thoughts. Should I buy a better heat sheath for the starter? Should I wrap the headers with heat tape (I hate to do that for no other reason than I like the way they look).