The first generation were a converted 350 gas block with pump boss added running a machined 455 crank. Many issues with block rigidity and machining tolerances, inadequate fule filtration and owners not understanding that injected water does nto burn and will stop a pistong breaking a crank. The later ones had many updates, thicker main webs, etc, and pretty reliable. They are much sought after for converting to gas race motors as the block is about 200% stronger on the bottom end than a stock 350 gas.
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Today's Featured Article - Repairing A Massey Harris 22 - by John Reeves. I have just given this old girl (boy?) a replacement RH rear axle. I was lucky enough to find an axle in good shape at a reasonable price - also a replacement for the right rear brake assembly which was
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