Register now to get rid of these ads!

Olds 394 fuel pump replacement found

Discussion in 'The Hokey Ass Message Board' started by TiredIronGRB, Mar 10, 2014.

  1. TiredIronGRB
    Joined: Feb 22, 2009
    Posts: 554

    TiredIronGRB
    Member

    Just an FYI...

    As you know it's hard to find an Olds 394 fuel pump, after hours of research I found that a fuel pump for 77-78 Buick V6 (AC # 41209) will work. The only modification is to drill the 5/16" mounting hole to 3/8" and bolt it on.

    I hope this helps out.
     
  2. oldrelics
    Joined: Apr 7, 2008
    Posts: 1,727

    oldrelics
    Member
    from Calgary

    Do you have it bolted on and running?
     
  3. TiredIronGRB
    Joined: Feb 22, 2009
    Posts: 554

    TiredIronGRB
    Member

    Yes, works great.
     
  4. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    Wowsers, great tip. Thanks, I may have to do that.

    Don
     

  5. oldrelics
    Joined: Apr 7, 2008
    Posts: 1,727

    oldrelics
    Member
    from Calgary

    You should post it over on the classic olds forum too, theres a few over there that would be interested. In some year cars it wouldn't work because the fuel pump is also a vacuum pump needed to operate the heater box. In a hot rod setup it is a good choice then.
     
  6. oldrelics
    Joined: Apr 7, 2008
    Posts: 1,727

    oldrelics
    Member
    from Calgary

    Umm, what is your 394 in? I got excited:D and got one too, but I doubt it will fit my car:confused:, a '61 olds 88. It looks like the crossmember is in the way of the pump inlet/outlets:(
     
  7. Well I run a blue holley to the carbs on mine, but if I was running a mechanical this is very good info.

    Now if I could just find a good solid '61 Starfire to bolt my behemouth into I would be tickled pink.
     
  8. From Fusick

    Dual Action Fuel Pumps:
    Rebuilding 1961-62 (6585 AC), and 1963-64 (6620 AC) only. Core charge for
    fuel pumps is 125.00. These pumps are normally in stock for immediate shipment.
    6585 1961-62 Fuel Pump 115.00
    6620 1963-64 Fuel Pump, cars without air conditioning 115.00
    6620A 1963-64 Fuel Pump, cars with air conditioning 115.00

    Phone: 1-860-623-1589
    Phone: 1-860-623-1583
    M-Th 8:00 AM to 5:30 PM
    Fri 8:00 AM to 5:00 PM
    Sat 9:00 AM to 12:00 Noon
     
  9. TiredIronGRB
    Joined: Feb 22, 2009
    Posts: 554

    TiredIronGRB
    Member


    A '62 Dynamic 88, it's a tight fit but it works.
     
  10. stickylifter
    Joined: Feb 21, 2005
    Posts: 1,268

    stickylifter
    Member
    from Detroit

    I got the pump, and it bolted right on without even having to hog out the holes. The only problem is that the actuator arm doesn't seem to contact the cam lobe. It's not pumping any fuel. Did you pop out the pins on the original and swap the original arm over?
    There are two styles, one with a straight arm and the other with angled arm. I got the angled one. The straight one doesn't look like it would come even close to hitting the cam. Any suggestions?
     
  11. dobsonre
    Joined: Dec 30, 2012
    Posts: 1

    dobsonre
    Member

    The 394 fuel pump design changed in 1963. The Buick pump will fit 1962 and earlier. Found out the hard way. Now looking to have my mech pump rebuilt with proper materials (this ethanol fuel is crap!) or try to find a quiet electric fuel pump that won't overheat. What a pain!
     
  12. improbcat
    Joined: May 15, 2006
    Posts: 219

    improbcat
    Member

    Just an FYI to anyone else who finds this thread. This pump also worked on the 324 Olds in a 1956 Super 88. Had to hog the holes out to 3/8" and run new lines to/from it, but it fits and works fine as long as you don't need the vacuum pump. Found the pump for $14 at rockauto by searching the AC part number, other places had them as well for cheap.

    [​IMG]
     
    lodaddyo likes this.

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.