WANTED Carb for 68 383

Road Runner Parts Wanted

  1. john visconti

    john visconti Well-Known Member

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    My car is a 1970 with a 68 383
    10-1/2-1
    Looking for a 68 carb to match Up Engine, will a 440 carb work?
     
  2. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    68-69 Road runners with a manual used a carter 4615. Other 68 383 manuals used a carter 4426 according to my book
     
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  3. john visconti

    john visconti Well-Known Member

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    do you know the difference between the two? and can a 1970 440 carb work?
     
  4. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    Not sure of any differences but yes a 440 carb will work.
     
  5. john visconti

    john visconti Well-Known Member

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    Cool do you have any or do you know where I can get one I was going to buy this one in California for 100 bucks that kind a looks OK but it probably needs a rebuild I think it’s at 4:40 1970 carburetor I just want to make sure the choke hooks up
     
    Last edited: Jun 10, 2019
  6. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    Carter 4737 or 4739(California)
     
  7. john visconti

    john visconti Well-Known Member

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    Those are the numbers I should be looking for?
     
  8. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    For a 1970 440
     
  9. quikbird

    quikbird Well-Known Member

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    size of carb should be in the 650 cfm range. don't go too big
     
  10. john visconti

    john visconti Well-Known Member

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    She always said bigger the better hahahha
     
  11. john visconti

    john visconti Well-Known Member

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    thumbnail.jpg
    what about a A7-4968 s or could be 4988 hard to read
     
    Last edited: Jun 11, 2019
  12. 69hemibeep

    69hemibeep Sponge Bob Square Wheels

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    My 68-74 book only shows 4968 which was used on 1971 440 auto cars
     
  13. john visconti

    john visconti Well-Known Member

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    Cool so that should work.
    Probably and 71 the 440 was detuned comparable with the 68 383 engine?
     
  14. john visconti

    john visconti Well-Known Member

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    still looking
     
  15. Rich B

    Rich B Well-Known Member

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    Those were coming through with Holly’s also, replaced mine and seemed to be better than the Carter. 5 more HP, at least that was the consensus half a century ago, hmm.
     
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  16. john visconti

    john visconti Well-Known Member

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    781651FB-E20D-4A86-B891-F5021F7585BD.jpeg
    Yes true I forgot about that.
    What CFM Holley or carb number?
    I just got a 600 CFM with electric choke for free it’s a polished carburetor I put it on for now
     
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  17. Rich B

    Rich B Well-Known Member

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    174CF9B8-426F-4F23-848A-7D33410629CF.jpeg

    Yes, believe that’s when compression ratios were lowered, more smog stuff added, unleaded gas in use and went from Gross to Net horsepower advertising. A lose-lose combo. Oh too, the tamper proof carb screws showed up around then also. Always wondered how a Spread Bore would work with the larger secondaries- never tried.
     
    Last edited: Jul 14, 2019
  18. Rich B

    Rich B Well-Known Member

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    Gorgeous, I’d keep that if it’s working good. Can’t recall CFM but close to Carter, learned not to overdo on bores. My ‘Lil Red Truck had a good Carter with phenolic body to keep fuel cool, had vapor lock back through the 60’s, ‘70’s with hot engines sometimes.
     
    Last edited: Jul 14, 2019
  19. john visconti

    john visconti Well-Known Member

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    4381FAD3-08AE-46A8-ABB5-A3CD8BA70490.jpeg
    Yeah I priced it it was about 300 and change I just had a Mustang that I’ve acquired and it had a lot of extra parts with it so I got this for free.
    My old one had no choke
     
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  20. john visconti

    john visconti Well-Known Member

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    i think the Larger secondaries would be great reminds me of a quadrajet carb.
     
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