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Hot Rods Let's talk Cadillac 331's, 365 and 390's

Discussion in 'The Hokey Ass Message Board' started by Roothawg, Apr 7, 2016.

  1. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,236

    Roothawg
    Member

    I've just got a couple of cores. Mine are missing a lot of parts as well. I have pondered swapping over to a small 450 CFM Holley.
     
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  2. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 25,273

    Jalopy Joker
    Member

  3. 31hotrodguy
    Joined: Oct 29, 2013
    Posts: 1,995

    31hotrodguy
    Member

    I might just have to go buy this issue of hotrod! It’s been awhile since I bought a hot rod mag!


    Sent from my iPhone using The H.A.M.B. mobile app
     
  4. clunker
    Joined: Feb 23, 2011
    Posts: 1,613

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

    They are not progressive. This is a stock linkage for the ‘56 Eldo Rochester 2x4. Just threaded rod. I popped in electric chokes from ebay, super cheap, they work great. I want to eventually switch to manual chokes, also available on the Bay. My engine bay does look like shit tho’ , I like Mad Max more than Chip Foose. You may want more polished stuff, of course.

    I got this dual quad set up on Ebay a few years ago for a few hundred bucks. Proper carbs and linkages, but the carbs were both frozen and missing pieces, including the chokes and other stuff. I grabbed a bunch of shitty cores from the Bay, managed to wiggle the shafts free, and get this working really well. It happens to be Rochester rather than Carter. But I like Rochesters and messing around with tuning, it really brings the 390 to life. For real.

    Sent from my iPhone using The H.A.M.B. mobile app[​IMG][​IMG][​IMG][​IMG]
     
    Last edited: Jul 3, 2020
  5. Thanks Clunker! That helps!
     
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  6. clunker
    Joined: Feb 23, 2011
    Posts: 1,613

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

    Also, I bought this online years ago. It may or may not be of use for someone dealing with Carters, but it may be useful for someone dealing with Rochesters, so I will put it here in this thread, which would be the likeliest place it might help someone. IMG_0577.JPG IMG_0578.JPG IMG_0579.JPG IMG_0580.JPG IMG_0581.JPG


    Sent from my iPhone using The H.A.M.B. mobile app
     
    Last edited: Jul 4, 2020
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  7. clunker
    Joined: Feb 23, 2011
    Posts: 1,613

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

  8. clunker
    Joined: Feb 23, 2011
    Posts: 1,613

    clunker
    ALLIANCE MEMBER
    from Boston MA
    1. MASSACHUSETTS HAMB

  9. More good stuff! Thanks for sharing.
     
  10. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,236

    Roothawg
    Member

    He's a hamber as well.
     
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  11. WTF really
    Joined: Jul 9, 2017
    Posts: 1,248

    WTF really
    ALLIANCE MEMBER

  12. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,236

    Roothawg
    Member

    Hey guys, I have been digging through the archives looking for a tech piece where a guy took a distributor out of something like a an Olds and machined the housing to ft a Caddy. Anyone remember that?
     
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  13. TERPU
    Joined: Jan 2, 2004
    Posts: 2,240

    TERPU
    Member

    Small Block Chevy Magneto, tach drive type. The metal shaft type like a Ronco/Vertex/Scintilla. Then I just machined a base using the original Cad for dimension. Then cut the Chevy one to length and to accept the Cad gear and pump drive. Tigged the two pieces together and the rest is shocking history. Cheapest Cad Mag ever made. Even Tom Cirrelo liked it when he recharged it.
    Just remember to hone the bushing as it gets a little tight after welding.

    - Tim
     
  14. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,171

    Barrelnose pickup
    ALLIANCE MEMBER

    Hi Roothawg, I didn’t do that but machined a sleeve to adapt a SBC Spalding flamethrower to fit a Cad, what are you looking for info wise?
     
    Last edited: Sep 4, 2020
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  15. chrisp
    Joined: Jan 27, 2007
    Posts: 840

    chrisp
    Member

    I don't know if it's mine you're talking about but I posted a couple of pictures years ago of the dizzy I machined for my 390. I started off with a summit 2 piece Ford unit, I can't remember if it was a 351C or W and machined a whole new stanchion for it, the top part just bolts on as the summit unit, I bored the Cad gear to match the shaft and redrilled the shaft for the pin.
     
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  16. Automotive Stud
    Joined: Sep 26, 2004
    Posts: 4,124

    Automotive Stud
    Member

    How would these work? Is it because it's a magneto? Cadillac spins the opposite way of small block Chevy. I was talking to a guy on instagram who machined an adapter ring to use an Olds 303-324 distributor, its a little easier to find a Mallory for one of those, but he was pretty cryptic on what was actually involved or wanting to sell any parts.
     
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  17. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,171

    Barrelnose pickup
    ALLIANCE MEMBER

    F3B9BE02-AAE5-4C06-9428-CE04BE043ECB.jpeg The Spalding is a distributor, I just had to change rotation of it,machine a sleeve to fit the Cad block. I machined the Chev diameter down slightly and sweat it on with a bit of heat.
    As the shaft diameter was the same,just shorten it and drill for the drive pin.
     
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  18. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,236

    Roothawg
    Member

    I don't remember who it was, but it was an actual thread on it. It may have been ChrisP. I was just surfing the web looking for Caddy Magnetos and they are hard to come by, so I thought about trying to find something that was close and modifying. I don't have to use a mag. I just don't really want the mag look alike HEI. That's really the only option for new, that's out there.
     
    Last edited: Sep 4, 2020
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  19. chrisp
    Joined: Jan 27, 2007
    Posts: 840

    chrisp
    Member

    [​IMG]

    [​IMG]

    It was originally ordered for a Pantera but not used, I can't remember if it's because the car had a 351 Windsor or the guy ordered a Windsor dizzy. I just recall it was rotating in the same direction as the Cad, the size was about right and easy to modify. That was 7 years ago and I'm not getting any younger...
     
    Last edited: Sep 4, 2020
  20. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,236

    Roothawg
    Member

    I’ll take 2, thanks.
     
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  21. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,171

    Barrelnose pickup
    ALLIANCE MEMBER

    Beautiful work there, completely new housing, makes mine look agricultural.
     
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  22. TERPU
    Joined: Jan 2, 2004
    Posts: 2,240

    TERPU
    Member

    It works, but when I sent it to get recharged I asked Tom to change the cam lobe for Cadillac. The magneto doesn't care which direction it spins
     
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  23. chrisp
    Joined: Jan 27, 2007
    Posts: 840

    chrisp
    Member

    Thank you, but the summit design is a 2 piece design, so I only had to machine a new lower part just below the head so it's really easy, think about it, I'm a bodyman not a machinist and I have 0 training in the trade.
    Roothawg, wish I could, that would be fairly simple and cheap since it would requier to machine only the stanchion and you sourcing the summit dizzy but nowadays being 2020 I barely have time for myself, to make it short my dad died in early april, by the end of April my mom had a stroke, she is now paralyzed from the neck down and mute and I'm taking care of her part-time, so the days are extremely short.
     
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  24. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,171

    Barrelnose pickup
    ALLIANCE MEMBER

    When I did mine, I couldn’t machine it down to original size as it had to take the sbc housing. Nice job you did though, you sound as if you have the same machining experience as I have.
    Sorry to hear your situation.
     
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  25. Dick Stevens
    Joined: Aug 7, 2012
    Posts: 2,929

    Dick Stevens
    Member

    My condolences for the loss of your Dad, and pray for you in this time of helping take care of your Mom!
     
  26. chrisp
    Joined: Jan 27, 2007
    Posts: 840

    chrisp
    Member

  27. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 1,171

    Barrelnose pickup
    ALLIANCE MEMBER

    Has anyone heard of a pre 60 Cad block that has successfully been converted to full flow oil filtration?
    With all the talented and knowledgeable blokes that would have looked at this possibility over the years I kind of think if it could be done it would have been done.
     
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  28. Shadow Creek
    Joined: May 14, 2014
    Posts: 217

    Shadow Creek
    Member
    from Summit, TX

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  29. Roothawg
    Joined: Mar 14, 2001
    Posts: 20,236

    Roothawg
    Member

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  30. winduptoy
    Joined: Feb 19, 2013
    Posts: 2,120

    winduptoy
    ALLIANCE MEMBER

    I shouldn't show this with out the blower but it just came in the mail. Anyone have a spare 4-71 blower? IMG_20200925_172745839.jpeg

    Sent from my XT1585 using The H.A.M.B. mobile app
     

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