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  1. J

    2003 Merc 50hp Bigfoot Control Interchange

    Good morning all. I have a 2003 Premier Grand Majestic 250RE with 2003 Mercury 50hp Efi 4Stroke Bigfoot. Boat is rated to 115hp Id like to upgrade the motor to 90 or 115hp Can anyone tell me what years shared identical controls/ (cables and electrical) Im having a hard time finding this info...
  2. J

    1989 Mercruiser 5.7L 4bbl Alpha one Exhaust temp/water flow difference side to side

    I have a 1989 sea sprite came from the factory with a 4.3L 175hp Alpha drive I bought it with a cracked block. Now the boat has a new reman 350 Gen+ (center bolt valve covers non vortec) Marine engine 4bbl air gap aluminum intake. New Manifolds and 4" risers with the restricted riser gaskets (2...
  3. J

    17.5' Deep V 350 Alpha prop input

    I have a 1989 Sea Sprite 175 SS Came from the factory with 4.3L 175hp and Alpha 1 drive with 1.84 ratio. Previous owner didnt winterize and the block split, I bought the boat like that. I decided to go with a 5.7L 260hp rather than the 4.3L. New motor is reman marine 350 roller cam with 4bbl...
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