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  1. C

    4.3 Swap, advice needed

    The old motor has an electric fuel pump that I've swapped over. Also gotten new head, exhaust, and intake gaskets. Already bought the newer style intake for the 4bbl carb the boat came with. Found a guy with the right water pump locally because my old marine one has the bypass hole and the...
  2. C

    4.3 Swap, advice needed

    So I made the likely poor decision to buy my first boat. I made a 2nd poor decision buying a boat knowing it had a bad motor. 1994 Mariah something or other with the 4.3 Mercruiser that once torn down showed a cracked block under the intake and one of the exhausts was also cracked. I've done...
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