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    1978 mercruiser 470 3.7 swap heads with a 1985

    Does anyone know if I can swap the heads from a 1985 model to my 1978 model. its a mercruiser 470 3.7 liter..... thanks in advance
  2. I

    mercruiser 470 3.7 oil in #1 cylinder.....

    Hey everyone, this will be my first post Iwish it wasnt the case but here we go. I recently rebuilt the lower end of this engine and thought i could get away with not rebuilding the head. Maybe I was wrong, I took the boat out for the second time yesterday(with the whole family go figure) and...
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