why does this matter to a 350??

Discussion in 'Small Block Tech' started by New SBB, Dec 30, 2009.

  1. New SBB

    New SBB That HURT

    74-7280-6 NEW FUEL PUMP 1968 BUICK 350 V8 W/AC is the title to an ebay sale item I recently saw. My engine is a crate motor (no Buick car around it) that, so far, I have determined to be from 72-81, but most likely from 79 or 80 due to the code on the Qjet. So, my question is this: why does it matter about the year, or whether or not it has AC? :Do No:
     
  2. CJay

    CJay Supercar owner Staff Member

    The A/C ones have a fuel return line. The non A/C ones dont.

    It should read "without A/C or fuel return line"
     
  3. New SBB

    New SBB That HURT

    So, if I build my Willys without AC I would use one fuel pump, and then have to change it if I decided to add AC later?
     
  4. CJay

    CJay Supercar owner Staff Member


    The only difference is the return line.
     

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