70 Brake booster with upside down delco stamp?

Discussion in 'Parts wanted' started by Smartin, Jul 14, 2021.

  1. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Looking for a power booster for a 70 power drum car. I am hearing that I need a booster with the infamous upside down Delco stamp. Does this exist in any form in today’s market?
     
  2. Eric

    Eric Founders Club Member

    Call Booster Steve @ 503-248-8882
    Power Brake Booster Exchange
    Tell him Eric sent you
    He should have the answer!
     
  3. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Thanks Eric!
     
  4. Matt Knutson

    Matt Knutson Well-Known Member

    I have a box with some booster parts. I'll take a look.
     
  5. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Thank you!
     
  6. BUQUICK

    BUQUICK I'm your huckleberry.

    john.schaefer77 likes this.
  7. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Sweet thanks Gary
     
  8. Matt Knutson

    Matt Knutson Well-Known Member

    Here's the one one I have. Will need some TLC on the surface and replating. I have the whole assembly and may have one more, too. The cover is the worst part Can check tomorrow morning for the other if interested.
     

    Attached Files:

  9. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    How much would you want for that assembly, Matt?
     
  10. BUQUICK

    BUQUICK I'm your huckleberry.

    If you have a correct but pitted example, they can polish or grind them smooth and touch up the Delco stamp with an engraver. Not cheap or quick but if you are doing a concours resto it’s sometimes required in order to save a correctly dated booster.

    Depending on how picky you want to be there are different fonts used on the Delco stamping too. Skinny O and round O.
    3F5B8E93-ECC5-4074-B8D4-11C11E9C3E5A.jpeg
     
  11. Matt Knutson

    Matt Knutson Well-Known Member

    I'm motivated to give it to you for the cost of shipping and a cold one at the Nats.
     
  12. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Oy...what is correct for a 70?
     
  13. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    Matt, sounds good to me. PM coming
     
  14. 2dtrak

    2dtrak Gold Level Contributor

    I’ve seen both. I pulled these out tonight. Both off of 1970’s even though the one has incorrect 71/2 master cyl. When the replated one was done looks as if they buffed the lettering almost completely off. The one I used on the silver mist car was from “the right stuff”. Pretty sure it was upside down
     

    Attached Files:

    Last edited: Jul 15, 2021
  15. copperheadgs1

    copperheadgs1 copperheadgs1

    Pretty sure right side or upside down is correct
     
  16. copperheadgs1

    copperheadgs1 copperheadgs1

    Depends how the guy punched the holes that day
     
  17. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    It was indicated to me that it would be points off for the "right side up" booster at MCACN. Also need bleeders on my master for power drums.
     
  18. Max Damage

    Max Damage I'm working on it!

    I have a master with bleeders, but it came off a disc/drum car? It would need to be rebuilt... Let me know if it works for you and I could get it moving early next week. It came out of a 1969 Old 442.


    IMG_2930.jpg
     
  19. 69 GS 400

    69 GS 400 Well-Known Member

    I seen a reproduction one for sale on Ebay before with the upside down markings. I thought it was a mistake so I passed on it.
     
  20. Smartin

    Smartin antiqueautomotiveservice.com Staff Member

    That's a different master than what I need...mine is smaller and not the "fat" style you see on most cars.
     
    Max Damage likes this.

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