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Thread: Conversion Oil Pan

  1. #1
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    Conversion Oil Pan

    I know you guys are pretty much all jeep on here other than a few of us running Domestics with some soon to be jeep running gear (front solid diff).
    But here is a V8 conversion oil pan that I am building. Now be the broke and cheap guy I am here is what I did.
    (You can buy a pan online for about $250 or a DIY kit for between $30 and $50)
    #1: Cut the flange off the gm 4.3 oil pan (red line on pic)
    #2: Cut section off pan so you have two pieces (red line on pic)
    #3: What it looks like seperated
    #4:Cut the flange off the gm 305/350 oil pan (red line on pic)
    #5:Weld in a piece of appropriate guage sheet metal bent to shape, piece should be like 4"(blue shaded area) and weld the flange from the 305 oil pan also (green shaded area)

    I ran out of welding wire but will have the actual finished product Pic in a couple of days.
    Attached Thumbnails Attached Thumbnails 1.jpg   2.jpg   3.jpg   4.jpg   6.jpg  

    Last edited by Hillbilly Militia; 10-24-2009 at 10:41 PM.

  2. #2
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    dsnt the 4.3 and small chev use the same oil pan sump?

    how come you couldnt use a small chev oil pan?

  3. #3
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    On a two wheel drive it is possible but on the 4x4 the diff gets in the way, and i am unfortunate enough to not be able to do the diff swap till spring.

  4. #4
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    i see your working on a blazer s10

  5. #5
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    ive done the swap but also did a solid axle swap at the same time

  6. #6
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    eventually I will buy a Jeep for a toy but for now the Blazer will suffice.

  7. #7
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    sorry i was in the dark with what you were working on.

    if you need any info post it up i have done the swap many times

    are you gong to run the tbi?

  8. #8
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    I will later, long story short 4.3 died last week. The truck is a 91 and I have an 89' 305 that is tbi torn down and will start this winter on a build up, but in the mean time till I get it done I have a carb'd 1984 305 that is going in. It runs and will get me by for now. So when I do the axle swap I will put in the TBI motor.

  9. #9
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    you can put the a tbi manifold on the 305carb engine

    it uses the stock 4.3 wiring just have to pull the eprom "chip" from a 305 or 350 truck and pop it in your 4.3 jimmy computer.

    its much easyer than yanking your gas tank and setting it up for carb

  10. #10
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    i've been told that if you can find an AWD GMC Safari or Chevy Astro , you can use the oil pan from it. they are not as deep as the 2wd pan.

  11. #11
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    ok but why wouldn't you just use pic#4 pan

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