I just retired from GM Powertrain, building Northstar engines for Cadillac. The Cadillac engines are not currently DoD. Back in the 1980's, we did produce a engine ( 472 or 500? ) that was called the 8 - 6 - 4. This was phased out very shortly after maybe 2 years. The electronics of the day were not up to the task. I remember hearing that the engine tended to get a sticky solenoid valve, leaving the engine in 4 cyl mode. Since this was 5,000 lb car, it had a 0 to 60 time of maybe a week. The current GM DoD engines have computer controls on everything. It really helps on milage. I was told that at highway speeds of 70 mph, the average car is only drawing about 28 hp. So the engine is generally loafing at 70. So I can see how a tractor engine could power a vehicle, but you would probably not be impressed by the performance. It might take a couple of minutes to get to 70.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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