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Technical Smithy's mufflers

Discussion in 'Traditional Hot Rods' started by '48IHC, Sep 13, 2013.

  1. '48IHC
    Joined:
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    Location:
    Greeley, colorado

    '48IHC Member

    My boss gave me these as a bonus for this two weeks. I have heard of them and know they are a 50's and 60's style glass packs. Any info would be great! Any videos of someone's car with them would be helpful!

    ImageUploadedByH.A.M.B.1379122355.885547.jpg


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  2. elwood blues
    Joined:
    Sep 13, 2005
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    Location:
    Boise ID

    elwood blues Member

    If I remember right they are packed with stainless steel "wool" I've never heard a car they sound bad on nice raspy snarl.

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  3. plymouth1952
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    Jun 30, 2008
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    Location:
    Grants Pass Ore

    plymouth1952 Member

    Had them on my 57 fairlane and it talked shit !
  4. Speed Gems
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    Jul 17, 2012
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    Location:
    St. cloud, Minnesota

    Speed Gems Member

    Here's a Plymouth flathead six with Smithy's

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  5. Groovybaby6
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    Dec 29, 2008
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    Denver

    Groovybaby6 Member

    I have 2 hot rods with those. They sound great with flatheads.
  6. '48IHC
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    Location:
    Greeley, colorado

    '48IHC Member

    Thanks for the info guys! That flat six sounds damn good. I'm running a pretty non-traditional engine since it kinda fell in my lap, however, i took the EFI off and slapped a carb on it (5.3L). Any videos of a small block running them?


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  7. Speed Gems
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    St. cloud, Minnesota

    Speed Gems Member

    Here's one.

  8. StrickV8
    Joined:
    Dec 20, 2005
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    754
    Location:
    Marietta, GA

    StrickV8 Member

    No. I think he said glass packs. If looking for modern mufflers for that 50s deep mellow sound, try Brockman Mello-Tone Steel packs. They sound great
  9. MERRELL
    Joined:
    Nov 17, 2007
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    Location:
    badlands/fontana ca

    MERRELL Member

    I just put a set of 22" smithys behind the 390 in my merc,I really thought they would rap a little louder... But they still sound great.


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  10. aircoup
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    northernca

    aircoup Member

    long ones are too quiet imo
  11. cfnutcase
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    Branson mo

    cfnutcase Member

    You will hate them.....just go ahead and send them to me....!!!! I run smithys on my 51 ford and I will never run any other muffler!! They are the shit!! They have that beautiful mellow sound running down the road but when you put your foot in it they really get with it! You will love them!! Jim

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  12. 47Plym
    Joined:
    Aug 23, 2004
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    Location:
    Joplin, MO--home of the HAMB Drags

    47Plym Member

    Just depends on what sound you like. The short ones are a bit
    Snappier....the longer ones a little more mellow. Some give
    A louder droning effect during highway driving. What length
    Are the ones you were given? Do they appear new or used?
    About all you can do is put them on the car and drive to see
    WhAt you get from them.
  13. duncan
    Joined:
    Aug 23, 2006
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    Location:
    cowichan valley b.c.-canada

    duncan
    ALLIANCE MEMBER

    Great bonus and NOT made in china.


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  14. '48IHC
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    Location:
    Greeley, colorado

    '48IHC Member

    Well I like the deeper droning sound when driving and cruising. I like to hear the motor screaming when I get into it however.

    They were put on a 56 belair at the shop but the engine was never fired so they sat outside for a couple months. No carbon build up inside at all. Also the body on them is 22" long with 2" inlet and outlet. I have 3 inch on my pickup now but I can choke it down


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  15. deadendcruiser
    Joined:
    Jul 18, 2007
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    673
    Location:
    Norwalk, Ohio

    deadendcruiser Member

    Have some behind my nailhead. I prefer the mellow tone of them, over the "look at me!" cackle of cherry bombs.
  16. pasadenahotrod
    Joined:
    Feb 13, 2007
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    11,742
    Location:
    Texas

    pasadenahotrod Member

    Smithy mufflers were originally called steel-packs which referred to their packing made of steel chips and turnings NOT steel wool. Steel wool doesn't survive long in the acidic atmosphere inside exhaust parts.
  17. 5559
    Joined:
    Oct 25, 2012
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    Location:
    tn

    5559 Member

    one of the best sounding mufflers out there
  18. '48IHC
    Joined:
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    Location:
    Greeley, colorado

    '48IHC Member

    I like what I'm readin in the posts.. I have 3 inch exhaust into a Y-pipe with a 4 inch tip. I'm gonna just have to put one on and see what it sounds like!


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  19. Garry Carter
    Joined:
    Mar 11, 2002
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    541
    Location:
    Spring Branch TX

    Garry Carter Member

    Don't have a problem with Smithy's ... they're on my coupe. But I wanted a more distinctive sound for my roadster and went with a pair of Porter's instead. Check out their website for multiple vids that will let you listen to them.
  20. Talkwrench
    Joined:
    Jun 7, 2010
    Posts:
    47
    Location:
    Perth, Western Australia

    Talkwrench Member

    22" ones on my 292 y block magic sound.. But at 65 mph sounds like a diesel boat, don't mind it. Had some on my little 21 stud flathead and didn't make a sound.. Went to 12" open style better.
  21. Lytles Garage
    Joined:
    May 6, 2011
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    559
    Location:
    Rock Island, WA

    Lytles Garage Member

    Got them on my 36 Panel, COOL sound !! Chris
  22. Hdonlybob
    Joined:
    Feb 1, 2005
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    2,910
    Location:
    Brodhead, Wisconsin

    Hdonlybob Member

    Running them on my 283...not overly loud, but cruising at ~60mph they are just plain "Awesome Music"
    Love em.....
  23. Feo
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    Oct 1, 2008
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    Location:
    Las Vegas

    Feo Member

  24. HUSSEY
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    Kansas City

    HUSSEY
    ALLIANCE MEMBER

  25. JonnyAce
    Joined:
    Feb 12, 2010
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    Location:
    Kansas City area

    JonnyAce
    ALLIANCE MEMBER

    Smithy's are a good choice, especially if you live in a neighborhood with whiny neighbors who are sick in the head and don't like loud exhaust. They idle quietly with a great mellow tone, but when you goose it they can really roar, particularly in the 3000-&-up rpm range. Plus, they don't really drone too bad. But if you really want that classic rumble and pop, I'd recommend a set of Porter shorty's. They've got a killer rumble & roar.
  26. hotroddon
    Joined:
    Sep 22, 2007
    Posts:
    11,455
    Location:
    Orange, So Cal

    hotroddon Member

    Smithy's have been around longer than any other "Performance" muffler - since the 1920's!
    Ermie Immerso (3 time AMBR winner) bought the company back many years ago, and they had been changed from the original steel chips to glass wrap. We (PerTronix) bought the company from Ermie about 13 years ago and continue to build them the same way, only with a better quality glass, right down to the unusual blue paint.

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