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4.3 in a flattie?

Discussion in 'Flat Fender Tech' started by khamill, Feb 22, 2009.

  1. Feb 22, 2009
    khamill

    khamill Member

    Kansas
    Joined:
    Mar 2, 2005
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    161
    anybody done it? Been searching for hours but can't find anything. Did you move the trans/x-fer or keep the stock location. Pics would be great.
     
    khamill, Feb 22, 2009
    #1
  2. Feb 23, 2009
    DAUNTLESS46

    DAUNTLESS46 Member

    SO CAL
    Joined:
    Jan 15, 2009
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    63
    i think runnin a 4.3 you would use the same charictoristics?(spelling) but there similar in size there is somone who stuck one in a 5 here somwhere did you search 4.3 or 4.3 flatty you might find it if i come across it ill post the link
     
    DAUNTLESS46, Feb 23, 2009
    #2
  3. Feb 23, 2009
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Aug 10, 2003
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    Can't be any worse than a V8 Chevy ... and that's been done lots of times. Novak has some discussion about the SBC.

    I think you'll have to notch the firewall to clear the distributor if you do not move the crossmember.
     
    timgr, Feb 23, 2009
    #3
  4. Feb 23, 2009
    khamill

    khamill Member

    Kansas
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    Mar 2, 2005
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    161
    Zero results on both in the build forum
     
    khamill, Feb 23, 2009
    #4
  5. Feb 23, 2009
    Bill F

    Bill F Finally running

    Hillsboro NH
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    Sep 22, 2002
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    Bill F, Feb 23, 2009
    #5
  6. Feb 23, 2009
    ImACarGuyToo

    ImACarGuyToo New Member

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    Feb 1, 2006
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    Mine has a 350 in it. I did not do the swap myself. I swapped in a HEI and had to hack up the cowl/firewall alot for it to clear. I will post some pics of what my mounts and all look like tonite.
     
    ImACarGuyToo, Feb 23, 2009
    #6
  7. Feb 23, 2009
    khamill

    khamill Member

    Kansas
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    Mar 2, 2005
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    161
    I would appreciate that. Would you also look at the trans crossmember and see if it was moved and if so, by how much
     
    khamill, Feb 23, 2009
    #7
  8. Feb 23, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Sep 23, 2002
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    12,529
    You can also use a small bodied distributor like those made by MSD for firewall clearance. We fit a 400 sbc in a 3b using the short water pump and brackets and an MSD distributor with no firewall mods.
     
    nickmil, Feb 23, 2009
    #8
  9. Feb 23, 2009
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    Mar 4, 2003
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    5,472
    I helped a guy position one in a 3A - like Nick said, he used a small body distro and a short water pump. We also put a SM465 and Saginaw in so moved things all around. Like mine his shifters ended up close to the stock location (tcase ones). Since we neither one use the standard cross memeber I can not give you a number of inches.

    When we got it all laid out, it looked like it would fit pretty good. One thing to remember, with a V6 your shortening the engine length by 1 Cyl, so it gives more room to work with things.
     
    Warloch, Feb 23, 2009
    #9
  10. Feb 23, 2009
    khamill

    khamill Member

    Kansas
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    Mar 2, 2005
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    161
    I plan on using the smaller dist with the TBI system
     
    khamill, Feb 23, 2009
    #10
  11. Feb 23, 2009
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    sparky, Feb 23, 2009
    #11
  12. Feb 23, 2009
    khamill

    khamill Member

    Kansas
    Joined:
    Mar 2, 2005
    Messages:
    161
    If I had the 420 adapter it would be since I have a 420 available. No, just a 4.3 mated to a T90 in a 2A. Would like to rough in the mounts for the engine. Would like to see how it fits and get an idea about whether or not I should move the tranny. If I don't have to move the tranny, I can do the mounts this weekend. If I do, then I have to make some space in the shop (been working in the barn).
     
    khamill, Feb 23, 2009
    #12
  13. Feb 24, 2009
    brandon533b

    brandon533b Member since 2007

    Yakima,WA
    Joined:
    Mar 2, 2007
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    if you have the adapter to mount the 4.3 to your t-90 then just bolt it up and fab your motor mounts. my grandfather did chevy v-8 conversions to alot of flatfender jeeps, including his 2a and my 3b and my uncles mb. all 283 chevy v-8s with stock t-90s. if you have to recess the fire wall alittle then do it. but you shouldn't have to move the tranny. IMHO. oh ya and take pics im planning on the same swap.
     
    brandon533b, Feb 24, 2009
    #13
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