You will not have a problem running a domed piston with that head. The term low compression is used to described a head that is designed to burn kero or distilate fuels. You can mill the head down to increase compression but you will need to take it down quite a bit to get even get close to a stock high compression head. The diffrenence in compression is, the low compression will have around 90 psi while the high compression gas will have around 130psi. As D said check your tag for a suffix it could have been ordered like that from factory. If your not planning on pulling or heavy tillage then that head will be fine. What are you planning on doing with that Super M?
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Today's Featured Article - The Day Tractor Lovers Dream About - by Angus Crawford. The day started at five o'clock on the morning of Friday, the January 29, 1999. My father, my sister, my uncle, my cousin and myself all climbed into my uncle's Toyota van. It was six thirty in the morning and we had a long day ahead. We traveled for six and a half hours to our destination - a little country town with a population of no more then one hundred and fifty people (57 of them being children under the age of thirteen). We arrived hoping to meet up with a man we knew had over one
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