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Projects GMC 248 six banger question

Discussion in 'The Hokey Ass Message Board' started by coolvato, Mar 4, 2021.

  1. coolvato
    Joined: Feb 3, 2008
    Posts: 75

    coolvato
    Member

    Hello all, I'm in need of some help with my 1954 GMC 248 six. Where can I find a replacement water pump for this engine or will one off of a 235 Chevy interchange? I did find a rebuilt pump but its priced at $300 bucks and I don't want to pay that I'm sure there is a cheaper alternative. I did a search but this topic is a bit limited and a bit outdated. Any info is appreciated.
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 48,668

    squirrel
    Member

    I had a pump for a different engine rebuilt several years ago, it was under $200. Might see if you can find a company that rebuilds them, and send yours in?

    http://www.az-rpm.com/wprebuilding.html

    for example
     
  3. squirrel
    Joined: Sep 23, 2004
    Posts: 48,668

    squirrel
    Member

    looks like they're similar but different...the 235 and 248

    235 pump.jpg 248 pump.jpg
     
  4. coolvato
    Joined: Feb 3, 2008
    Posts: 75

    coolvato
    Member

    Thanks for the info Squirrel yeah I see the difference.
     

  5. Bearing Burner
    Joined: Mar 2, 2009
    Posts: 916

    Bearing Burner
    Member
    from W. MA

    Look in Hemmings Motor News
     
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  6. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,956

    gas pumper
    Member

  7. sunbeam
    Joined: Oct 22, 2010
    Posts: 5,215

    sunbeam
    Member

  8. Tman
    Joined: Mar 2, 2001
    Posts: 34,058

    Tman
    ALLIANCE MEMBER

    I also pulled up several rebuild kits after seeing this earlier today. Not that hard to do.
     
    coolvato likes this.
  9. Have you used that site to actually buy anything? Just curious.

    I was looking at it the other night and thought the Name/Email/Phone boxes to purchase were very odd. Some parts had no price listed. I did some searching on Facebook and then Google, and found lots of references to the site somehow being a scam site. The one post on Facebook about it was supposed to be from a legit seller of Daytona/Superbird parts who claimed the 2040 site had lifted some of their photos and cautioned everyone that they (2040) don't actually have the parts. I did recognize some of the photos of Fenton Chevy six intakes from an eBay store.

    If you have experience with them, I'm all ears- They do have some cool shit there. I just got a weird vibe from the site that was backed up by lots of other posts in various places online.
     
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  10. squirrel
    Joined: Sep 23, 2004
    Posts: 48,668

    squirrel
    Member

    I've always assumed that 2040 is just a site that reposts other's content, so I use it only to find pictures of obscure stuff that probably is not really available.
     
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  11. tubman
    Joined: May 16, 2007
    Posts: 5,635

    tubman
    ALLIANCE MEMBER

    I've found "Rock Auto" has a lot of old parts; you might try them.
     
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  12. squirrel
    Joined: Sep 23, 2004
    Posts: 48,668

    squirrel
    Member

    Unfortunately they only have parts that are being made, or were made sort of recently...and it's been a while since those pumps were a regularly available rebuilt item.
     
  13. Turns out I have a WS78 kit in my barn if neither of the above work out for you. Dave
     
  14. 2040 is a scam site mentioned on the Jalopy Journal a few times already.
     
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  15. Truckedup
    Joined: Jul 25, 2006
    Posts: 4,070

    Truckedup
    Member

    Summit Racing claims thay can get you one in a few weeks, but thats a chevy pump in the photo ? I belive the prewar Chevy 216 pump looks like a GMC pump?
    https://www.summitracing.com/parts/...KwRBR-DnCSedxJ2pQoGwK4DrRU6qX5tAaAko7EALw_wcB
    Be aware there are several different belt widths..I have rebuilt several GMC and Chevy pumps.. the machined area of the casting that the seal rides on gets corroded on some pumps. That might mean a trip to a machine shop if you dont have the equipment to to it..
     
    Last edited: Mar 5, 2021
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  16. KenC
    Joined: Sep 14, 2006
    Posts: 582

    KenC
    Member

    I've had good luck with my local Oreillys using the R&R service with their rebuilder. Not with a GMC but some odd imported tractors and such. Won't hurt to ask, and I suspect most good parts stores have a similar service. And, by that I mean, not AutoZone.
     
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  17. Try N.B. Pease & Co. Palmer, Mass. 1-413-283-7620. Nelson has an antique auto supply business that specializes in mechanical parts.
     
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  18. 302GMC
    Joined: Dec 15, 2005
    Posts: 6,814

    302GMC
    Member
    from Idaho

    The '37 - '40 216 Chev pump was a standard item required for the GMC - Chev swap in the late '40s - early '50s. It works great IF you have the 7/8'' pulley harmonic balancer.
     
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  19. coolvato likes this.
  20. I did find one by searching today for $99.00 but I know it's a scam. I forget some of the original names of the website maattrramo.com but I do remember these distinct features, price about a 1/3 of anyone else and free shipping for any order over $40.00. The site was registered on Feb 10, 2021 and they list 100's of thousands of products they sell. They actually sell nothing. They will stiff a few thousand people and then change their name again. So buyer beware! Dave
     
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  21. Last edited: Mar 5, 2021
  22. For rebuilding, try Terrill machine in DeLeon, TX. 254-893-2610.

    Ben
     
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