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Thread: 68 307
          
   
   

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  1. #1
    Drewz68's Avatar
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    Car Year, Make, Model: 68 Chey Chevelle
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    68 307

     



    I would like to start by saying that the amount of info here is incredible..
    With that said, I have a 68 Chevelle with a 307 (purchased about 3 months ago), do not know much about it, feels tight, does not burn oil, 350th trans, 2bbl carb, appears to be completely stock. What can I do for more hp on a budget?
    newbie, but learning fast...

  2. #2
    Michael Pukash is offline CHR Member Visit my Photo Gallery
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    In my humble opinion you'll have to first unplug the 307 as they are not a motor to hotrod. Look for a 350.

  3. #3
    techinspector1's Avatar
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    Realistically, bottom line, Michael has provided the correct answer.
    Last edited by techinspector1; 05-20-2005 at 11:17 AM.
    PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.

  4. #4
    Drewz68's Avatar
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    Thank you, that is in the plans, I am just looking for a little something extra right now. Is it best to just live with what I have until I build the new motor?
    Thanks agian.
    newbie, but learning fast...

  5. #5
    TooMany2count's Avatar
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    i just dont understand why people dog the 307's & 305's. yes it does cost more $$$$ to build them & almost noboby wants them. BUT they are just as reliable as any other SBC and they can be made to run fast IF ya know the correct combo. i did have a link from this site were some other member gave me advice about the 307 & how to hop it up, BUT it's been deleted, ooo well....joe
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  6. #6
    stepside454's Avatar
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    its up to you, dollar for dollar youll get more power from a 350, so if your looking for the most economical overall power, your better off with 350 or more, however, you can make really decent power with the 307.
    75 GMC C-15 factory 454, automatic, lowered

  7. #7
    autocityman4 is offline CHR Member Visit my Photo Gallery
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    people have a right to dog the 305 its junk if your looking for power then of course 350

    the 307 has the shorter stroke so it revs high.its a smaller bored 327 im looking for one to try it out

  8. #8
    stepside454's Avatar
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    of course people have the right. doesnt make em look smart, but who cares.
    75 GMC C-15 factory 454, automatic, lowered

  9. #9
    TooMany2count's Avatar
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    Last edited by TooMany2count; 11-15-2008 at 08:16 PM.
    Donate Blood,Plasma,Platelets & sign your DONORS CARD & SAVE a LIFE

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  10. #10
    stepside454's Avatar
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    thats what I say
    75 GMC C-15 factory 454, automatic, lowered

  11. #11
    autocityman4 is offline CHR Member Visit my Photo Gallery
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    Question

     



    ??

  12. #12
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    i'd say if you wanna juice it up buy a decent intake manifold, get a small 4bbl carb, you'll have to get used to not stomping it but easing on it to not drown the engine, upgrade your ignition with a pertronix unit... that'll make her run a little nicer.... and then when you get a 350, all those parts are interchangeable
    just because your car is faster, doesn't mean i cant outdrive you... give me a curvy mountain road and i'll beat you any day

  13. #13
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    The 307 is a much better engine than a 305. The 307 has the same bore as a 283 (3.875") and the stroke of a 327 (3.25"). Almost anything you can do to help the performance of a 327 or 350 will also work in a 307. Thesals is correct - buy the goodies you want and you can put them on a 350 later.
    Jim

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  14. #14
    Drewz68's Avatar
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    Thank you all for the advice, again, the info here is excellent.
    newbie, but learning fast...

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