mallory part numbers

Discussion in 'General car talk' started by BC409, Sep 12, 2005.

  1. BC409
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    BC409   Supporting Member 1

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    hi guys,does anyone have an old mallory catalog? I am trying to identify an old dual point distributor i got in a load of swapmeet stuff.the numbers are"MALLORY DOUBLE LIFE DISTRIBUTOR YC531HP" I tried looking all over the web and couldnt find anything. thanx for your help.
  2. droptop62
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    droptop62   Supporting Member 1

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    Yeah,
    I have one too that I would like to identify.
    YC-465-HP
    kind of a neat old piece. Looks like a cable drive for tachometer???

    Attached Files:

  3. JimKwiatkowski
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    JimKwiatkowski Active Member Supporting Member 5

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  4. droptop62
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    droptop62   Supporting Member 1

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    Thanks Jim.
    That is a lot more than I knew before.
    You always seem to be able to dig up information that nobody else can find.
    Thanks.
  5. CHEV601234
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    CHEV601234 New Member

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    some help maybe


    The YC531 was a dual point with a 4 lobe cam. It's advantage was 1/2 the point wear. The breaker plate was set so one set of points worked 4 cylinders each time around. There was really no performance advantage to it. It was like having 2 single point distributors ini one with twice the lifetme on the points. (but you're buying 2 sets of points anyway, right?) The 531 (minus the YC) was also a dual point but with an 8 lobe cam. It's advantage was both points sets were closed at the same time longer than one set could stay closed, staggered so the "effictive" dwell was much longer than the normal 28-32, thus allowing more primary coil saturation and a higher voltage from the secondary when it collasped.
    I don't have a catelog, but I've fooled with them.
    The points sets and rotors are hard to find today. Chevy stuff won't fit.
  6. VintageIgnition
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    VintageIgnition New Member

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    YC-465-HP is for small & big block Corvette w/ tach drive. This a mechanical advance dual point "double-life" distributor. Fairly rare.
  7. droptop62
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    droptop62   Supporting Member 1

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    Vintage Ignition.
    what else can you tell me about the distributor?
    I know nothing about these.
    Thanks, Todd (droptop62)
  8. IgnitionMan
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    IgnitionMan Banned

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    Are the point sets retained with one or two screws each? Mallory built both types, points vary for each type.

    You can do what a lot of people also do, only use one set of points. Mallory made later dists with only one set of points as well.

    There may be a chance a local NAPA store will have the points, they have the rotors for the dist you posted pics for, and places like PAW have the caps, aren't expensive for the cap set, like $20.00 or so. Condensers are easy, don't have to be mallory, but they are available as well.
  9. droptop62
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    droptop62   Supporting Member 1

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    Thanks for all the input.
  10. IgnitionMan
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    IgnitionMan Banned

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    Just for anyone who wants it's information:

    Cap: Mallory, pn 4001, about $20.00 at places like PAW< Summit
    Rotor: NAPA MA7

    Points, two sets were used, match them up, depends on the dist date of manufacture:
    NAPA CS2300
    NAPA CS2301
    Difference is in the mounting
    Condenser: NAPA MA3

    There are alternate caps for these dists, they are of conventional design, and do not use the upper and lower caps with the rubber retainer, they use conventional sockets and are black:

    NAPA MA5
    NAPA MA9

    As I said, just FYI.
  11. CHEV601234
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    CHEV601234 New Member

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    Sir, that is some of the most valuable information I have read here. Thank you! :)
  12. VintageIgnition
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    VintageIgnition New Member

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    Yc-531-hp

    Hi,

    YC-531-HP is for American Motors (AMC) V8..ie: 343, 390 etc.


    Hope this helps.