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gray marine inboard engine

Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » gray marine inboard engine « Previous Next »

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fred e white
Posted on Thursday, March 25, 2004 - 05:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

would like to know year & hp, of geay marine engine ser# m6ooa354 611z nickel chrome block graytrane model 6-121c4584 reduction gear model RB 20ser#gp42 paragon gear works 6cyl please E mail me thank you
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andrew
Posted on Friday, March 26, 2004 - 02:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Fred,

A Gray Marine 6-121 is:
  • 6 cylinder
  • 4 x 4-3/8
  • 330 cubic inch
  • Lugger max 96hp at 2400 rpm
  • Express max 124hp at 3200 rpm


I don't know the year.
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Bruce
Posted on Saturday, March 27, 2004 - 09:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Andrew and Fred, I think the C-4554 serial # makes it a late 1941 model according to the serial number info list I have on Graymarine letter head. C-5000 begins the 1942 production year. The longer serial number fred gave must be the Continental OEM number ??

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