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Hot Rods Mopar finned alternator on a SBC??

Discussion in 'The Hokey Ass Message Board' started by hotdamn, Apr 14, 2021.

  1. hotdamn
    Joined: Aug 25, 2006
    Posts: 2,124

    hotdamn
    Member

    Hey guys whose ran a mopar finned 1 wire alternator on a sbc??

    I’m thinking about putting one in my coupe. I figure if I’m gonna run an alternator it might as well look good right?

    any spacing issues regarding mounts or pullys?

    any first hand knowledge is super appreciated.

    Thanks!!!
    Delton
     
  2. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,019

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Anybody??

    @hotdamn Got any pics of the alternator?

    Ray
     
  3. Torana68
    Joined: Jan 28, 2008
    Posts: 1,253

    Torana68
    Member
    from Australia

    the Email ones? or?
     
  4. Budget36
    Joined: Nov 29, 2014
    Posts: 6,404

    Budget36
    Member

    I have one on an old forklift my dad converted years back, I’ll put it along side a 10si I have, I seem to think they are thinner than the Delco alternator.
    But you’re right, it does look nicer to the eye.
     

  5. Elcohaulic
    Joined: Dec 27, 2017
    Posts: 2,031

    Elcohaulic
    Member

    I have the 10D.N. alternator but had the builder polish the aluminum case. I think it looks so nice..

    engine passenger side.JPG
     
  6. squirrel
    Joined: Sep 23, 2004
    Posts: 48,682

    squirrel
    Member

    should be fun, the lower mounting "ear" is the opposite of what it needs to be. But I'm sure you can figure out something.

    And the voltage regulation system is different, be sure to find an old NOS or NORS Mopar voltage regulator, with an actual relay inside, for the full effect. And beware that you want stuff from a 1960s Mopar, with the single wire regulator, not the later two wire (electronic) regulator, or it will look wrong.

    delco.jpg mopar.jpg
     
  7. Well here’s a GM one wire on a mopsr
    D06F3086-640E-4F24-8BA3-6E8657C85DD9.png
     
    Deuces and hotdamn like this.
  8. bchctybob
    Joined: Sep 18, 2011
    Posts: 3,030

    bchctybob
    ALLIANCE MEMBER

    I’ll be using one on the ‘56 Olds engine in my ‘28 roadster but I’m not there yet. Can any of the Mopar guys tell me what year and model had a single groove pulley and what amp ratings they came in? I have one with a two groove pulley but I think it’s just a 35 amp.


    Sent from my iPad using The H.A.M.B. mobile app
     
  9. I don't have one on a SBC......
    but I do have the chrome casing shells hoarded for the day when I will have one on my SBC. :oops:

    DSCN1997 (2).JPG
    ..
     
    Last edited: Apr 15, 2021
  10. lake_harley
    Joined: Jun 4, 2017
    Posts: 1,419

    lake_harley
    Member

    I have no input on which Mopar alternator will work the best, but I agree they are nicer looking. By comparison the GM alternator looks clunky while the finned Mopar unit is more artsy. Many years ago I used one on a 389 Pontiac in a '40 Ford Tudor I had (should have kept that car!!).

    Lynn
     
  11. hotdamn
    Joined: Aug 25, 2006
    Posts: 2,124

    hotdamn
    Member


    So when you put it on the poncho engine did it line up oaky or did it require modification to fit?
     
  12. squirrel
    Joined: Sep 23, 2004
    Posts: 48,682

    squirrel
    Member

    Most of the 60s alternators that were not used with AC had a single groove pulley originally, but most replacement rebuilt alternators have a double groove, so they don't have to stock an extra part for the AC cars. The Mopar AC compressor generally used two belts, and shared with the alternator, so the AC alternators had double pulleys.

    The chrome case pictured above is the later electronic regulated version, the 60s alternator did not have the big square thing for the diodes, and looks nicer.

    70s on the left, 60s on the right.

    alternators.jpg
     
  13. jimmy six
    Joined: Mar 21, 2006
    Posts: 9,025

    jimmy six
    Member

    Are they narrower than a standard alternator? They look like it.
     
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  14. squirrel
    Joined: Sep 23, 2004
    Posts: 48,682

    squirrel
    Member

    I like how they measure to the front of the shaft....quite a useless data point :) I think I'd have measured to the center of the rear groove in the pulley.

    but nice pictures!
     
  15. Tow Truck Tom
    Joined: Jul 3, 2018
    Posts: 112

    Tow Truck Tom
    Member
    from Clayton DE

    I grabbed a Mopar regulator and an alternator at the junkyard in 1969. Then hung it on '58 283. Can't recall the deets except that there was no problem. Oh yeah, did it because of the fins.
     
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  16. safetythird
    Joined: Feb 26, 2014
    Posts: 133

    safetythird
    Member

    It's a scientific fact that anything both finned and Mopar is the pinnacle of automotive style.
     
    wheeldog57, bchctybob and Deuces like this.
  17. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 5,492

    Ebbsspeed
    ALLIANCE MEMBER

    To some of us, a standard alternator IS the Mopar alternator.;)
     
    deathrowdave likes this.
  18. Mr48chev
    Joined: Dec 28, 2007
    Posts: 29,077

    Mr48chev
    ALLIANCE MEMBER

    Outside of early or late alternator and what regulator you use What mount you have on the engine is probably the main issue. With the ones with the long mounting bolt and spacer that goes behind the alternator you just have to figure out what length spacer (s) you need and make them . One to go between the ears and one to go between the back ear and the head or block or ? that it fastens to.
    I saw a couple that were swapped in the mid 60's but they weren't on hot rods. I think the guy who did the swaps was a mechanic in a Chrysler Plymouth garage who didn't drive a Mopar.
     
  19. bchctybob
    Joined: Sep 18, 2011
    Posts: 3,030

    bchctybob
    ALLIANCE MEMBER

    Whenever you put something like a generator or alternator on an engine other than the original application you can pretty much count on some bracket modification or fabrication being required. They are seldom a direct bolt-on. My 324 Olds had a huge Delco generator. I'm building a tribute to a hot rod from the early '60s so I'm trying to emulate what he did by using the Mopar alternator. It's a tight squeeze, I'll be building new brackets.
    IMG_E2056.JPG IMG_2109.JPG
     
    Elcohaulic, Hot Rods Ta Hell and rod1 like this.
  20. squirrel
    Joined: Sep 23, 2004
    Posts: 48,682

    squirrel
    Member

    Replacing a generator with the Mopar alternator is probably easier than replacing the GM alternator with the Mopar alternator....
     
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  21. lake_harley
    Joined: Jun 4, 2017
    Posts: 1,419

    lake_harley
    Member

    It was 45-ish years ago so I don't recall details but I'm 99.99% sure I had to fabricate a bracket and tensioner arm. I may be wrong (it's been known to happen) but I think it barely fit in front of the head that is slightly staggered back on a V8 engine. I'm sure it looked stylish and very organic. :D

    Lynn
     
    hotdamn likes this.
  22. I think the Mopar is fairly close in depth ("narrower")..... maybe a whisker less. But the extra inch diameter plus the round corners give the illusion of being narrower.
    It's just my opinion, not a scientific fact. o_O
     
    bchctybob likes this.
  23. deathrowdave
    Joined: May 27, 2014
    Posts: 2,597

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    I guess they look better , but I tossed the Mopar finned and replaced it with the old reliable 12 SI on my Cummins . I’m not to much for looks , I want what works day in and day for many years and a child can rebuild it at the North Pole . Just my 2 cents , that are only worth 1/3 cent today .
     
  24. bchctybob
    Joined: Sep 18, 2011
    Posts: 3,030

    bchctybob
    ALLIANCE MEMBER

    I ran a Mopar alternator and the funny little regulator on my BBC powered '33 5w way back in the late '60s. It came in a box with the parts to complete the car and being a bucks-down kid I just made it fit and it worked fine for many years. I'm just curious as to how many variants there were in the nicer looking 1960s units. Lower output in the Dart/Valiant models vs higher output in the larger Fury/Coronet/Charger??
     
  25. squirrel
    Joined: Sep 23, 2004
    Posts: 48,682

    squirrel
    Member

    looks like they ranged from 26 to 51 amps in 1968...

    alt.jpg
     
    57 Fargo likes this.
  26. hotdamn
    Joined: Aug 25, 2006
    Posts: 2,124

    hotdamn
    Member

    Thanks so much for all the input guys!!! Grateful the hamb still rules ❤️❤️
     
    Johnny Gee likes this.

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