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    Frank, Speaking for myself I would put the...

    Frank,

    Speaking for myself I would put the pistons back in it because you have a piece of history, now that Harry is no longer with us. He was one of the best mod motor builders their was. Mods...
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    Frank. Looking at this last picture, the...

    Frank.

    Looking at this last picture, the filler block is an O’Brien. This is probably the last C motor that he built, just guessing it to be Jeff Young’s that he ran on a hydro until the early...
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    We didn't fool with C's that much but from the...

    We didn't fool with C's that much but from the pics this look like a C mod that has been converted to a service motor. The plate over the exhaust has been added later. I have ran against Harry's...
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    Frank I'm not sure, Dorn or Spandau may have. I...

    Frank I'm not sure, Dorn or Spandau may have. I was young back then and we got away from baots and started foolin with dirt bikes. We didn't get back to the boats until 82. From what you are...
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    It looks like Harry's work. The engine could have...

    It looks like Harry's work. The engine could have been one of Dorn's, Spandou's, Miller's its hard to say. Are there any stampings on the block? If so that might give you a starting point.
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    It looks like this may have come from Harry...

    It looks like this may have come from Harry O'Brien's shop one of his early motors, mid 70's to early 80's. This is crank mod is to keep the fuel in the crank case more active. Try it and see if...
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    I think Dorn and Spandau are still here in the...

    I think Dorn and Spandau are still here in the Peru and Indanapolis areas, Larry Schwier was at a few IOA races in the late 80's don't know where he is today. Dick Avaline passed away last December,...
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