you wanting to spend big money i built a 570 cube motor for my u 3 years ago and had 8500 in it. i got a 605 same as a 403 but just 6 cylinders that you can take the juggs, heads, rods and pistons out of and put on a u crankcase with a 6 inch crank and have 425 cubes. it has a 4 3/4 bore in it and 4210 heads on propane. you can get the 605 for 1500. you can offset grind the crank to 6 1/8 and bore the jugs to 4.810 and have 434 cubes. cheap start on a engine this way.
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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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