8717 was built in Jan. 1940. Probably the original low compression head with 3/8 threads in head for a manifold attachment. Good chance it was a non gas manifold originally. Head was cast close to tractor build time. If 4-15-O is the date code on block that makes it cast in 4-15-1945. Hard to tell a O from Q on them. If a Q 1947. If the engine came from another M it will have a serial number stamped in the block just above the right side cover on a raised flat area near front and in a area below the first spark plug. First three letters of a prefix before the number would be FBK. If the block was purchased as a replacement it may not have a serial number. Should have a 4 number block casting number on block above oil filter in raised numbers. Will have a two letter suffix. if no serial number the cast number and suffix letters may narrow the ID down.
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Today's Featured Article - Tractor Profile: Silver King - by Staff. Silver King tractors were produced by the Fate-Root-Heath Company of Plymouth, Ohio. The company was founded by John Fate in 1884 and was originally called the "J.D. Fate Company". After several mergers over the years, the final company name of Fate-Root-Heath came about in 1919. The first tractor produced was actually called the "Plymouth" tractor and was powered by a 20 HP 4-cylinder engine with a 3x4" bore and stroke. The four speed transmission had a top speed of 25 mph! After more t
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