Well from looking at the picture on this end ya can not see the whole story . As for the bearings they look a little tough . As for how the crank is best have it checked as do what is needed . Look real closely at the deck of the block for any letters stamped by each hole , the letters you are looking for will be either A-B or C -D . This is the BORE CLASS. of the hole The kits you buy from most places are only for bore class A-B and if the holes in your block are a C-D class the sleeves will not fit wright and will cause problems later . Now some guys will tell ya to just put some locktite on the sleeves that is a BIG NO NO in these engines . The sleeve MUST FIT THE HOLE CORRECTLY . There are two ways of doing this one is get the correct sleeves or on the C-D class holes Bore then out and install a repair sleeve and rebore it to a Class A-B hole . And there is a third way BUT it will get into the piggy bank . They make a upgrade pkg. deal where ya bore the block and you install special sleeves and bigger pistons and you go from a C263 to a C291 . The sleeves must be a press fit and then each hole must be sized to each piston and you MUST have at least .004 skirt to wall clearance . Next thing that is high on my list on these engines is the Cam i started sending them out and having them rebuilt and install new lifter . The deck of the block should be checked for flatness at this time along with the head . New cam bearing should be installed for good oil pressure . IF this job is done wright the first time then it will run many years with a good maintance program . As for the line bore i do not think that is needed this time around .The last C263 that i did was on my buddy's 706 and we got a little carried away on that one . We went from the C263 to the C291 upgrade with the line bore and center boring of the block off the crank saddles total balancing of all engine rotating parts C C' the head matched the ports to the manifold Reworked the carb and did everything we could to it . The end results are impressive .
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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