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Technical Potvin cam durations at 0.050"?

Discussion in 'Traditional Hot Rods' started by 61klassic, Jul 10, 2019.

  1. 61klassic
    Joined: Sep 21, 2017
    Posts: 10

    61klassic
    Member
    from Kent UK

    Good morning all.
    I'm trying to find more details on both the Potvin 3/8 and 400 Climax.
    I've searched on here and the Barn but can't find out the duration of either at 0.050".
    If anyone can post up full specs on both I would be grateful.
    Also is anyone out there still grinding these?
     
  2. Torana68
    Joined: Jan 28, 2008
    Posts: 1,067

    Torana68
    ALLIANCE MEMBER
    from Australia

    Might be wrong but I think your looking for a modern measurement. I don’t remember anyone doing @.050 in the time frame of the HAMB. You got “ advertised” duration which wasn’t always measured the same , hence the modern ish @.050 ( as well as advertised and the older 1/2 race 3/4 race etc)
     
    Last edited: Jul 10, 2019
  3. 61klassic
    Joined: Sep 21, 2017
    Posts: 10

    61klassic
    Member
    from Kent UK

    I appreciate that it wasn't a measurement always used. But hopefully someone has measured an original or if someone is regrinding them they know the specs.
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 42,665

    squirrel
    Member

    I'd be really surprised if that information exists anywhere. If you can find an old cam, new or used, you could measure it yourself....
     
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  5. akoutlaw
    Joined: May 13, 2010
    Posts: 686

    akoutlaw
    Member

    Have you tried calling Moon? They were grinding the Potvin cams & would most likely have the info.
     
    lumpy 63 likes this.
  6. christmas tree
    Joined: Dec 7, 2009
    Posts: 329

    christmas tree
    Member

    Try American Custom Cams at 626 963
     
  7. 61klassic
    Joined: Sep 21, 2017
    Posts: 10

    61klassic
    Member
    from Kent UK

    I wish I could find one, but pickings are a bit slimmer this side of the pond
     
  8. 61klassic
    Joined: Sep 21, 2017
    Posts: 10

    61klassic
    Member
    from Kent UK

    Thanks guys. I’ll try Moon and American Custom Cams
     
  9. Pete1
    Joined: Aug 23, 2004
    Posts: 1,630

    Pete1
    Member
    from Wa.

    Flathead Jack had that info at one time.
     
  10. 61klassic
    Joined: Sep 21, 2017
    Posts: 10

    61klassic
    Member
    from Kent UK

    Thanks Pete.
    Someone over here in the UK mentioned you are still grinding potvin cams. Are you still able to produce either of these?
     
  11. Pete1
    Joined: Aug 23, 2004
    Posts: 1,630

    Pete1
    Member
    from Wa.

    I can do the 3/8 and the 425. It would have to ship t a USA address.
     
  12. 97
    Joined: May 18, 2005
    Posts: 1,445

    97
    Member

  13. and a great job at doing it too Pete your da man.........................425 and loving it...............
     

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