Register now to get rid of these ads!

Generator alternative for 331 Hemi?

Discussion in 'The Hokey Ass Message Board' started by HotRod28AR, May 12, 2006.

  1. Im trying to keep this rod looking early '50s down to every detail, and the generator on my 331 Hemi looks awesome, but it has some huge power steering crap attached to it and I'd like to run one of those magneto looking electronic dizzys, so 6V is pretty much out the window. Anyone out there make an alternator that doesn't look so modern? Anyway to remove the power steering and convert the generator? Any help or ideas would be great. Thanks,
    -Dean
     
  2. Bugman
    Joined: Nov 17, 2001
    Posts: 3,483

    Bugman
    Member

    You could whip up some brackets and use a later(56+ ford and Mopar, 55+ chevy) 12V generator. In fact, a later Mopar generator should be a direct swap.
     
  3. I pulled the power steering pump off the back of my generator back in the sixties. I had a friend machine up an aluminum block-off plate to cover the bearing.

    The power steering uses ball bearings while the non-power steering generator uses bushings. I've never replaced the bearings in my generator in 40 years and it was USED, straight out of the junk yard, when I put it on there in the first place.

    You can put one of those first-generation ChryCo alternators down on the front of the block on the right side where the idler pulley bolts up. They're pretty period-looking.

    I have BOTH an alternator AND a generator. The alternator's down there where the idler used to be. Put that baby on in '76.
    I ran a support strap (old generator bracket) from the rear of the through-bolt up to a bolt hole in the head. I doubled up on the generator belt tension bracket bolt for another tensioner bracket for the alternator.

    Hafta see if I have any pics.
     
  4. brandokust
    Joined: Dec 15, 2004
    Posts: 365

    brandokust
    Member

    What about the Powergen hot rod stuff, looks like a generator but is realiable and has the output of an alternater.
     
  5. Dirty2
    Joined: Jun 13, 2004
    Posts: 8,902

    Dirty2
    Member

    You should just be able to remove the power steering pump off the back if the bearing is open than the bearing should be an 203. Just go get a sealed 203 bearing and change it. If you want to convert it to 12 volt send it to me.
     
  6. Dirty2
    Joined: Jun 13, 2004
    Posts: 8,902

    Dirty2
    Member

    If you do this buy 2 so when you are broke down in who knows where and no one can help you will be able to finish the trip. :D
     
  7. Comet
    Joined: Dec 1, 2004
    Posts: 2,568

    Comet
    Member

  8. srosa707
    Joined: Jun 5, 2005
    Posts: 1,573

    srosa707
    Member
    from Sacramento

    didnt see one for the 331. Can you get the GM one to mount on the 331? IM haveing the same dilemma...
     
  9. jsrail
    Joined: Sep 21, 2007
    Posts: 112

    jsrail
    Member

    Summit has the black ones for $350. Kind of expensive, but its about what I would pay around here to have one custom built. My problem is that I called Powermasters since I've got a '56 Dodge with power steering and their equipment doesn't bolt up to the PS pumps as of yet. They said maybe by this Fall or next Spring. I may just try and mount a later PS pump somewhere else. The problem for us Poly head guys is that we have NO bolt bosses on the front of the heads like the Hemis do.

    But, I think I may go the Powergen route on my 331 Hemi with the Universal Black one, they don't have a Mopar specific one yet.
     
  10. George
    Joined: Jan 1, 2005
    Posts: 7,885

    George
    Member

    Mount bolts to the intake & i've run my adj brackets from the crossover or W/P.
     
  11. jsrail
    Joined: Sep 21, 2007
    Posts: 112

    jsrail
    Member

    Your right George, I've been looking at some that mount to the two front intake bolts and then come down to bolt onto one of the water crossover bolts.

    This is a fabbing lesson for me.
     
  12. I would think there's a bunch of Mopar generators that would be a straight bolt on.
     
  13. George
    Joined: Jan 1, 2005
    Posts: 7,885

    George
    Member

    OEM intakes have mount holes on drivers side angling 90 deg vs the intake bolts for the oem generator.
     
  14. jsrail
    Joined: Sep 21, 2007
    Posts: 112

    jsrail
    Member

    Yeah, it cost me a good penny to buy an original Dodge '56 4bbl intake manifold so I would have the front bolt boss of those two you are referring to. '57 Dodge's don't have that. That's most likely how I'll bolt on an alternator on our Dodge, and the a/c will have to have a bracket made on the passenger side to mount the compressor, again, coming off the front intake bolts.

    My 331 will probably use Hot Heads timing cover, so they and others make easy a/c, alt., and PS brackets that bolt right up to their covers. But I'll have blower drives, etc. which will be enough crud to get around. :)
     
  15. FWIW, you DON'T want to use a generator if you're using electronic ignition or any type of computerized engine management systems (like hidden EFI).. generatore are electrically noisy and will screw up a computer and many electronic ignitions, including MSD.
     
  16. jsrail
    Joined: Sep 21, 2007
    Posts: 112

    jsrail
    Member

    Thanks desoto, that's good to know. Confirms my wish to use an alternator.
     
  17. thunderbirdesq
    Joined: Feb 15, 2006
    Posts: 7,091

    thunderbirdesq
    Member

    Yeah, transistorized ignition doesn't like dirty power. The regular ol' run of the mill Mopar finned aluminum alternators are about the best looking ones available, reliable and cheap too!
     
  18. vegas
    Joined: Feb 6, 2008
    Posts: 269

    vegas
    Member

    I just used a 12v generator from a 55 New Yorker, and left the p/s pump off the back, with a sealed bearing. It looks identical to the original 6v generator.
     

    Attached Files:

  19. vegas
    Joined: Feb 6, 2008
    Posts: 269

    vegas
    Member

    Those are my favorite alternators too...if I switch later, that's what I would use! :D
     
  20. JaBoney
    Joined: Feb 2, 2006
    Posts: 168

    JaBoney
    Member

    When I converted my 6 volt 54 Imperial to 12 volts I took the generator down to my local Rebuilder Shop (starters/generators) to get it converted. The owner said no need to modify your generator! Just change your voltage regulator to a 12 volt unit from a 56 Chrysler which is what I did and Presto! A 12 volt car now.

    Had to of course swap polarity from positive ground to neg. and change out the bulbs but that was pretty easy too. Still using the steering pump too but thats another story.
     

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.