To me stock is whatever was available on that model tractor when it was new, or was made available from the OEM as an upgrade.
For instance, I would consider a Farmall M with oversized, firecrater pistons as stock. A Farmall M with the sleeves removed to run a greatly oversized piston and the crank worked to gain stroke is not stock. A Farmall M with a 450LP head on it running on racing gas is also not stock in my book.
One way to keep them somewhat honest is to have them hook to an appropriate plow or heavy disk and pull it through a field for a couple hours. The heavily modified engines generally can't survive that, they are made to run for 300 feet only.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
... [Read Article]
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