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    1972 Sea Ray engine swap?

    Thank you all in advance, what an amazing forum. I just bought a 1972 18' Sea Ray and Im trying to I.D. the engine. Its an in line 6 cylinder with an engine block #366853, and the letters GM stamped below the numbers. If it is a 250, can I use a truck engine? Or are there other 6 cylinders that...
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    1972 SeaRay 165 hp Chrysler rebuild or swap?

    Thanks in advance for answers to this question....I just purchased a 1972 SeaRay 18' with a Mercruiser Chrysler 165hp in-line 6 cylinder. It has a rod knocking and it's time to replace or rebuild. I am trying to find out if there are any long blocks available and if not, can I swap any other...
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