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  1. S

    changing head on a 1994 3.0 mercruiser

    I have an older bayliner that has a bad valve in the 4th cylinder (90psi) all the others read right at 180 psi. Heres the question. . .can I change out the head on this to upgrade in horsepower? Will a head off a 3.7 work, a 4.0 r do I have to replace the same thing? I think it would be worth...
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    3.0 mercruiser tapping at high speed, weak out of the hole

    I have a 1994 Bayliner with a 3.o mercruiser and just replaced the prop, went from a 21 to a 19 pitch. Last weekend it seemed to run fine but yesterday I had no problem the first shot out of the hole, then we cruised around for about 20 minutes and slowed down, took in the view, and when I tried...
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