Re: Flathead Block Heater
I was given one years ago, still in the box. It's somewhere in my stash. This one was designed to go into one of the head studs that hits water. The gentleman who gave it to me was an Eastern Airlines mechanic in Newark, NJ. They used them on the tug trucks since they were flathead powered. Winters use to get really cold in the NE and he said they were needed since a lot these tugs were left outside and it was a bear to get them started when they were ice cold with single digit temps.
Mine is like Ralph G's and has a male plug on top of a heating element that sat on top of the stud.
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