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    StarCraft holiday 18ft 3.0 to 4.3 swap, good idea?

    I have a 1969 StarCraft holiday and was wanting to do a motor swap on it this winter. Some of you may remember I bought a cracked motor that had a bad detonated piston. Well I welded the block and ran it. Been running for a few years now, but it really struggles with skiing with a boat load...
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    Mercruiser 3.0 135hp. Crank and rods

    Okay so my luck sucks I guess. I bought a used motor and it had been overheated and cooked. But I’m still running it. Only 90psi on all cylinders and it’s been pulling great. Some how. But it’s worn out. So I bought a new 2019 3.0 for cheap no warranty. Well prime luck I have it started making...
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    Swapping out 3.0 for 4.3 mercruiser.

    Had a question Someone maybe able to answer. Has anyone fabbed up a front motor mount for a 4.3 mercruiser like the 3.0? Any reason I shouldn’t do it that way? Not sure if it had to much torque to maybe do it that way? My boat is a 69 Starcraft holiday.
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    3.0 mercruiser and a doosan 3.0 engine

    Sorry I couldn’t find the info. I found a brand new still in crate doosan 3.0 engine. The owner says it’s the same thing as the mercruiser 3.0? Anyone have any info on this. Right off I know I would need to change the core plugs to brass. Anything else? Are the cams and everything else the...
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    1969 Starcraft holiday 3.0 mercruiser - Possible swap to 4.3

    Hello all, first post and new to the forums. First off I bought an aluminum boat with an inboard needing a lot of love but he price was right and I have never seen one before. The original motor runs but has some repairs to the block. So I bough another motor. Well turned out the block was...
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