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    New Motor Vibration issues at low RPMs

    Hey group, I put in a new to me motor in a 2000 Crownline 180. I put in a 5.7 GM 638 block, I completely rebuilt the block with all new rings, bearing, and so on. The old Camshaft was use since it was the marine one. It has a crappy thunderbolt V, that I am waiting on replacement parts so I...
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    5.7 Mercuriser Cracked Block

    Ahoy Mates, I have been trolling this form for a while, read a lot of great information. Here is my issue, New to me 2000 Crownline 180, Know bad motor, very sad….a young guy first boat did not winterize it. It's a 5.7 Mercuriser 4 BBL with the 638 Block. Whoever owned this boat first spent a...
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