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    Cracked mercruiser 260

    I have a mercruiser 260 that has a crack under the exhaust manifold in the block. Can I change it out with any 350 block from any year truck or car. Boat is an 86 I have my hands on a 1990 350 engine block. Tia
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    1977 mercruiser 140

    My mercruiser 140 abruptly starting missing last year and I’m just now getting around to working on it. I can’t even get it to fire now. I’ve replaced the Coil, Cap and Rotor, and put 4 new plugs in it. It’s getting fuel and I have spark coming directly off the coil wire that goes to the center...
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    New prop

    so I spun the cup in my prop. I have a 1977 Ebko 17.5 with a mercruiser 140 and have no idea what size was on it due to the stamping not being on the prop from wear. I ordered a 14.5x21p any thoughts of how well this will perform. I used a 13.5x17p yo get around for the weekend but the prop i...
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