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    Engine Swap 3.7 Mercruiser to 4.3L GM

    So my motor is shot. Rebuildable yes but non running at the moment. It's the old 4cyl and is about 165hp in a 21ft boat. It ran well for a long time but now that it needs to be rebuilt I wonder if I should upgrade to a 4.3L. I can get a turn key 4.3L for an extremely good cost so I'm not...
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    Installation of Alpha One Drive

    I posted on here a while ago about the removal of the drive and found it was quite simple. I have repaired the motor and I'm ready to install both the motor and drive. Here's the question. I have no speedo cable or anything like that. Finding the forward postition on the drive it's self is a...
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    Mercruiser 3.7L / outdirve + engine removal

    I have a Mercruiser 3.7L with an Alpha One drive. The motor has been well taken care of but now has a severe lower end knock and loss of power under load. Upper end is good. Check all valves, push rods, compression test ect... I'm mechaniclly inclined so I will pull the motor myself and have the...
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