Joe: Those engines are 40 years old, you can get all the hp it will stand without the turbo. At one time I had my 560 cranking over 100 hp without a turbo. We backed it off to 90 and ran it that way for 11,000 hours. I never had any head problems either, those just happened to the guys that wouldn't let them cool down slowly. I put 11,000 hours on 560 and 15,000 on a 656, both went 10,000 hours on their original sleeves.
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Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
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