Common for gas manifolds to be installed at a later time on distillate and kerosene engines. If all associated parts for fuels other than gasoline are missing it could be impossible to tell what fuel the tractor came with. Unless the serial number of tractor or engine has the letter A after the #, or maybe a B. On 264 engines the head # you have was supposed to be used for distillate fuel. It will have roughly 1 to 1.5 point lower compression ratio compared to the gas head. I would say your head could be original to a SM tractor serial # 21000 or higher for a farmall or 501500 and higher for a louisville one. Could be a replacement head also. Another thing that may or may not be a tip is the carburetor #. 356984 for gas and 357231 for other fuel types.
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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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