If you're going to work her hard and need extra power then go with the high comp. pistons. Otherwise I would just go with standard with the 1/8" overbore. I used the 1/8" overbore on my A and she now has 20HP (they were tested at 17 new). Hardened seats can be expensive and if she won't be worked too hard its not really worth it. Definately grind the valves. Be sure to seal her up real good. The aluminum blocks on the front and back of the motor around the crank like to warp and will leak. Lay them flat on a piece of sandpaper on a bench and sand em out till they sit flat on the bench.
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Today's Featured Article - The Niagra View Mobile - Powered by a 1959 Ford Tractor - by Mark Massey. In 1959 the Niagara Frontier Transit Inc. of Buffalo, New York designed and built six Viewmobiles for the Niagara Frontier Sightseeing Inc. for use as a sightseeing ride at the Niagara Falls State Park, Niagara Falls, New York, powered by a 1959 Ford 611 Tractor.
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