That serial number doesn't fit in the range for a super diesel. That is a 1955 tractor. Super diesels were made at the end of the series run in 1957. Your 400 diesel has a 251 cubic inch engine and rated at 49 horsepower. Engine is stock with 4 inch bore. Super diesel used a 267 cubic inch engine with 4 1/8 inch bore. Super diesel was mechanically the same as the 700... Gene
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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