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    Serial numbers don't match

    I have a 1978 260-350 I believe. Theres no serial # any where on the engine to confirm what yr. it really is. It is a 350 Gm. I confirmed that. It looks to be a rebuilt motor, an not original. My sterndrive has a serial # stamped on the starboard side of the upper gear housing # 2729711. I had...
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    Whats the numbers stand for?

    On a mercruiser, theres lots of numbers. I'm confused with what the numbers 250 - GM 350 v8, or 260 - GM 350 v8, stand for. Is the 250, an/or 260 the horse power of the 350v8, or is that the model #. ?? Thanks ED
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    GM350/260 rebuild

    Started a project in the dark. I have a 350 out of a 1978 Century Boat, Theres no serial #s on the block,or anywhere else.This motor is missing numerous parts. Distributor,Thermostat housing,Regulator,Coil,an much more. I believe this is a newer block, an heads. Question. Can I just start...
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