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Technical Can you help ID this old Mallory distributor?

Discussion in 'The Hokey Ass Message Board' started by Saxman, Feb 25, 2021.

  1. Hey fellas, I picked up this old breakerless Mallory distributor. I’m curious as to what it is and how old it is.

    Was this originally breakerless or is this a conversion? The number on it is similar to the old ZC/YC flat top dual point distributors I’ve had except this has a “P” after the ZC.

    I’ve done searches on that number and don’t see much at all that can tell me anything.

    Is this even worth messing with?

    [​IMG]

    [​IMG]


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    Elcohaulic likes this.
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 47,941

    squirrel
    Member

    since the tag says IR in big letters, it's likely that it's an infrared breakerless distributor.

    but that's just a wild ass guess.
     
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  3. doug schriener
    Joined: Oct 12, 2008
    Posts: 37

    doug schriener
    Member

    Squirrel- I think you're correct-a friend of mine ran one in his Boss Mustang and it resembled the one in the pic.. Doug Schriener
     
  4. Well shit, Squirrel! I didn’t even notice the big IR in the background!


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    kadillackid likes this.

  5. Hey Squirrel,,,,,wag is an engineering term I always heard .
    But Swag was the best engineering term I ever heard .
    It was a Scientific Wild Ass Guess,,,,,used by some experts in the aeronautics field .
    I always chuckled when I heard that ,,,,,,LoL

    Tommy
     
  6. squirrel
    Joined: Sep 23, 2004
    Posts: 47,941

    squirrel
    Member

    Not much science with this one

    Sent from my Trimline
     
  7. So how old is this thing? I can’t seem to find that number in any of the Mallory lists. Should I throw it in a box and forget about it?


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  8. Fordors
    Joined: Sep 22, 2016
    Posts: 3,403

    Fordors
    Member

    ZC means it has both mechanical and vacuum advance. The 310 number says it fits small and big block Chevy, but not 348/409.
     
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  9. Thanks Fordors. Yeah, I got that part. I have a couple of older dual point ZC and YC 310HP distributors with the flat caps. I’m curious about the ZCP and what that means. I can’t seem to find ZCP-310HP listed anywhere. I’m trying to figure out when this was made, whether I can still get parts for it or if it is even worth messing with at all.


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  10. squirrel
    Joined: Sep 23, 2004
    Posts: 47,941

    squirrel
    Member

    1970s is my guess, but that is just another wild ass guess.

    A picture or two of the insides might help....
     
  11. squirrel
    Joined: Sep 23, 2004
    Posts: 47,941

    squirrel
    Member

    catalog page from a 1974 mallory catalog, on ebay



    74 catalog.jpg
     
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  12. J. A. Miller
    Joined: Dec 30, 2010
    Posts: 1,536

    J. A. Miller
    ALLIANCE MEMBER
    from Central NY

    From above, it looks like the IR distributor was part of a capacitor discharge system. You might have only the distributor part.
     
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  13. squirrel
    Joined: Sep 23, 2004
    Posts: 47,941

    squirrel
    Member

    That is very likely.
     
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  14. Hey! Thank you, gents! That’s the kind of info I was looking for. Now I least I have an idea of what I have. I appreciate your help.

    It does sound like it’s part of a capacitor discharge system, so yeah, I’m missing stuff. Too bad because it’s real clean and tight inside and the vacuum advance piston isn’t froze or anything.

    Thanks again!


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    J. A. Miller likes this.
  15. squirrel
    Joined: Sep 23, 2004
    Posts: 47,941

    squirrel
    Member

    Still no picture of the inside

    Sent from my Trimline
     
    Moriarity likes this.
  16. Yes, inside pic please....this distributor must be the forerunner of the famed Unilite...:rolleyes:
     
  17. The '70s (later '70s) was when I bought my first Unilite. it had the goofy looking vac advance port like that one if that is any help. ;)
     

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