Re: Flat 6
I have a G series, bored 0.040 over and a total of 0.040 off the deck and head. The milling of the head was at the machine shop recommendation due to surface imperfections. It has loads of low end torque and with a set of 3.54 gears in the rear will run 65 mph no problem. Other than the bore and deck milling, no other mods, its all like Henry had it.
Be glad you have an H, I found some of the internal parts (oil pump for sure) are no longer produced. I had to have a machine shop do some work on my pump to tighten it up.
I am having an overheat problem but it's airflow through the radiator issue I think. If I put a fan in front of it it cools down idling, without the fan it overheats. New radiator, rebuilt water pump, and a modern thermostat (which I am wondering if it may cause a problem)
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