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  1. T

    4.3 motor swap with truck engine

    Got ya. Thanks
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    4.3 motor swap with truck engine

    So since I don't have a mechanical fuel pump does that mean I can assume the water pump will fit?
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    4.3 motor swap with truck engine

    If that's the case, will the water pump fit as well then? I'm planning on starting a bit of teardown tomorrow, so I'll look for a balance shaft and try to get a better look at the casting numbers as well.
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    4.3 motor swap with truck engine

    What starter will fit on a new vortec block? my current block has no mechanical fuel pump, so it is newer than the original. What do I need to look for with a new starter to make sure it fits?
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    4.3 motor swap with truck engine

    Geez thanks for the catch....That would have been not exciting at all
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    4.3 motor swap with truck engine

    I thought the issue with the starter was just the mounting bolts. I must have misunderstood? What will not work with my starter?
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    4.3 motor swap with truck engine

    Alright, so I hope I have this right. I am keeping the heads, intake and carb from my old motor due to unavailability of low priced vortec intake and 4bbl carb. I'll hang on to the heads and keep my eyes on the used marketplace in my area. I plan to use the bolts that are different from the...
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    4.3 motor swap with truck engine

    They would have marine intake manifolds?
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    4.3 motor swap with truck engine

    I can seem to find any for $50. Not sure where to look other than Craigslist and fb marketplace.. I could not get any visual on casting numbers. I'll pray pictures of what I could see. Intake manifold had a stamp 6 on each side, so 12
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    4.3 motor swap with truck engine

    So manual trans is a more convenient donor motor?
  11. T

    4.3 motor swap with truck engine

    Can I just use the bolts from the donor motor?
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    4.3 motor swap with truck engine

    Can I just use the bolts from the donor?
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    4.3 motor swap with truck engine

    Why the flywheel if it's a manual? I read something about maybe the belt would be different on newer motors. Is this anything to worry about? What's the benefit of this?
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    4.3 motor swap with truck engine

    I think I'll start with what I have and make sure I can get it running before doing that. If I go vortec later I'll get a new 4bbl marine carb as well. If in freshwater only I don't need specific marine intake? Already have all this due to a fun project the previous owner left me with when I...
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    4.3 motor swap with truck engine

    I'm planning on swapping my knocking 1987 4.3L merc (s/n 0B459735) engine with a truck donor. Everything I've found is late 90s and later (vortec). What accessories can I keep from my old motor, and what won't fit? I know the intake manifold is different, but is there anything else? As far as...
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    Craigslist /marketplace or junkyard for donor motor?

    And the availability of motors I currently have an electric pump. I had a headache when I bought the boat a few years ago, so that's covered. Mine is from 1987 s/n 0B459735 not sure what cam it uses I'm still undecided what I want to do. I need a new block or to rebuild mine due to a knock...
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    Craigslist /marketplace or junkyard for donor motor?

    Couldn't I use my non vortec heads(assuming they are good) on a vortec engine and just use the short block from the vortec? Will any 4bbl marine carb work on a 4bbl intake or are there different fits? Is an old boat that we were planning on upgrading from soon anyway, so cost is important, but...
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    Craigslist /marketplace or junkyard for donor motor?

    Yeah. Didn't plan on using them. If it all comes with, I figured I would sell them. The intake and carb are going to be the high dollar items. Hard to find them used here right now. As far as carbs, any 4bbl marine carb will do with a 4bbl intake? I wondered about getting a 2bbl intake and just...
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    Craigslist /marketplace or junkyard for donor motor?

    So the loader pulls them both right up and out? I don't know what they use here. I have a several yards to choose from. I assumed they would have a cherry pocket I would have to use. Speaking of, I don't have a cherry picker. Are there places that rent them out or will I have to buy one?
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    Craigslist /marketplace or junkyard for donor motor?

    Not terribly worried about damaging the vehicle. More worried about the time /access to the fasteners. Cardboard to lay on the ground?
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