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History Five Carbs, Six Cylinders (Again!)

Discussion in 'Traditional Hot Rods' started by J.Ukrop, Jan 19, 2018.

  1. J.Ukrop
    Joined: Nov 10, 2008
    Posts: 901

    J.Ukrop
    SUPER MODERATOR
    Staff Member

    J.Ukrop submitted a new blog post:

    Five Carbs, Six Cylinders (Again!)

    [​IMG]

    Continue reading the Original Blog Post
     
  2. BlackJackPG
    Joined: Mar 23, 2012
    Posts: 156

    BlackJackPG
    Member
    from Indiana!

    I like the 5-carb McGurks because you have the option to run any combination of carbs you want (1,2,3 or 5)! Just plug off whatever doesn't have a carb over it!
     
  3. woodbutcher
    Joined: Apr 25, 2012
    Posts: 2,776

    woodbutcher
    Member

    :D Now this looks like it will be a fun thread.I`ll saddle up and go along for the ride.
    Good luck.Have fun.Be safe.
    Leo
     
  4. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,254

    GMC BUBBA
    Member

    I ran a five carb McGurk intake on my 322 GMC engine for a few years. Drove to the 100 car pile up in northern Illinois for two years with the set up. Blocked off two of the carbs and the engine would hardly run, so we ran all five and it ran great!! After a couple years i gave in to fuel injection (Throttle body from 91 chevy trucl) and ran that for a couple years. Painted the throttle body eastwood gold and hid the hoses with black shrink tube and no one ever notice it was injected. Couple years at the 100 car show as well. Traded the A for a custom 53 Olds lowrider and then trade the Olds back to another owner of the A . The custom low riders aint me!! That owner had changed the fuel system out for a holley 650 and thats what i have driven for the last couple years. Runs good for sure...
    The five carb was cool but maintance . ie leaks and adjustments wore me out....
    Glad to have my car back I built it in 2006 from a sedan body, 32 frame and quick change . GMC 322 (302 bored 125) and have ran a saginaw four speed all these years.. Nicson cast iron headers add a sound like no other... 5carb.jpg afour barrel.jpg
     
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  5. Tuck
    Joined: May 14, 2001
    Posts: 5,476

    Tuck
    Tech Editor
    from MINNESOTA
    1. Early Hemi Tech

    Joey-
    I just want you to know I always look forward to your writing on the TJJ- I can usually tell by the photo which one you authored. You're looking at and writing about the right stuff... :) :) :) Thank you for contributing to this place!
    Tuck-
     
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  6. tubman
    Joined: May 16, 2007
    Posts: 3,544

    tubman
    ALLIANCE MEMBER

    I used to vintage race with a guy who had a couple of 320 Roadmaster-powered track roadsters. IIRC, he ran 5 carbs on one on 'em. (Not as good as 5 for 6, but still pretty neat.)

    I had 4 97's in a row on my dirt modified for a few years, and had to rebuild them every spring. That was enough for me.
     
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  7. Marty Strode
    Joined: Apr 28, 2011
    Posts: 3,438

    Marty Strode
    Member

    The Spalding Bros initially ran 6 carbs on their Wayne Equipped Chevy ! Spalding 6 carbs egine shot.jpg
     
  8. 56sedandelivery
    Joined: Nov 21, 2006
    Posts: 4,932

    56sedandelivery
    Member

    Seattle area guy, with a black 37-39 Chevrolet Coupe, runs a
    GMC six with 5 carbs. I have to look at the car every time I see it, wherever I see it. He gets around, so the 5 carbs must not be an issue. I am Butch/56sedandelivery.
     
  9. Stan Back
    Joined: Mar 9, 2007
    Posts: 336

    Stan Back
    Member
    from California

    Roadster - Engine.jpg Roadster - Side View.jpg Here's my roadster in 1956. I've only owned it since 1962.
     
  10. christmas tree
    Joined: Dec 7, 2009
    Posts: 321

    christmas tree
    Member

    Still have the 5 carb 94s that we ran on our 292 50 years ago. 16387091_988419164628091_7379482694384034943_n.jpg
     
  11. Stogy
    Joined: Feb 10, 2007
    Posts: 7,099

    Stogy
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  12. joel
    Joined: Oct 10, 2009
    Posts: 1,322

    joel
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    Kind of OT, but in the Midwest in the 60s and 70s the ford 300 I6 and Chevy 292 I6s used 5 rochesters on fabbed manifolds in super modified roundy rounds.
     
  13. pgan
    Joined: Apr 7, 2009
    Posts: 156

    pgan
    ALLIANCE MEMBER

    This is a subject that gets my attention, and I can see some of my pals have already responded, so...
    carbs.JPG
    ...how about five carbs hanging on the garage wall? I forget who gave me the manifold because he thought it was useless. Stan Back (Jim Kitchen) gave me the alky carbs 40+ yrs. ago. My current plan is to put it on the spare 302 GMC sitting in the corner, along with an Enmark-built Saginaw 4-spd., and set it back 25 % in a Mazmanian-style candy red '55 Chevy with a chrome water-pipe rear bumper and pie crusts on polished Halibrands protruding from Nomad-radiused rear wheelwells. To drive on the street, of course. But I admit this is one project I may not get to.
    The Spaldings quickly found that three BXOV2s worked much better than 6 on their little 248-in. Chev 12-port, so that's what's on the repro Marty Strode and I are finally close to finishing.

    Sweet Six Dreams, Pat Ganahl
     
  14. GMC BUBBA
    Joined: Jun 15, 2006
    Posts: 3,254

    GMC BUBBA
    Member

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  15. enigma57
    Joined: Apr 12, 2007
    Posts: 124

    enigma57
    Member

    Very nice 5-carb setup you have there, pgan! I am going another route with my 292 inline 6 but the 5-carb should work really well on your engine. Try running #1, #3 and #5 (the carbs that line up with the 3 intake ports) on straight linkage and start bringing #2 and # 4 carbs in at 5/8 throttle on progressive linkage. That should work well with your 5-carb layout.

    Stromberg 97s flow around 155 cfm each (2bbl flow rating), so 3 of them would have 290.6 cfm at 5/8 throttle opening (or 465 cfm at WOT). And all 5 carbs at WOT would flow 775 cfm. That's at 2bbl flow rating. Divide by 1.414 for 4bbl flow rating and you have 548 cfm with all 5 carbs at WOT. Not overcarburreted at all. If they were alky carbs, they will have huge jets. Just rejet them for what passes for pump gas now of days (needle valve, main jets and powervalve) and she should run great!

    http://www.stromberg-97.com/tech_center/pdfs/stromberg-what-jet-size.pdf

    Good luck with your engine. Will follow with interest.

    Happy Motoring,

    Harry
     
  16. jeepsterhemi
    Joined: Dec 5, 2009
    Posts: 310

    jeepsterhemi
    Member

  17. Tuck
    Joined: May 14, 2001
    Posts: 5,476

    Tuck
    Tech Editor
    from MINNESOTA
    1. Early Hemi Tech

    I had owned one for a short while. I never realized how big they actually were... totally taken aback by their size! There are so many cool competition built cars with one of these in it.

    26867502_403965223371115_4839888823548641280_n.jpg
    Here's an old timey shirt I did ten years ago- Still have some if anyone wants one just PM me.
    This was the first poster I printed by hand- turned out rad. This is some old art too... 13 years ago already, I think all the old copies I had of this burned in my shop fire. Sure was fun learning how to print paper on a vacuum table. The actual printed posters looked way cool- they were huge.
    stoveboltposterscreenprints.jpg
     
  18. LOU WELLS
    Joined: Jan 24, 2010
    Posts: 821

    LOU WELLS
    ALLIANCE MEMBER
    from IDAHO

    This Buick Straight 8 ran a brace of 81s and won drag races...Credit given to Lee Wooley... 17309307_10208995161860396_4237506566517292037_n.jpg
     
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  19. Countn'Carbs
    Joined: Nov 8, 2006
    Posts: 651

    Countn'Carbs
    ALLIANCE MEMBER
    from CO

    "Thingie" taken at Saugus. At left is Tom McLaughlin and designer Bob Rounthwaite on the right. Credit: Don Montgomery.


    image.jpg
     
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  20. jeepsterhemi
    Joined: Dec 5, 2009
    Posts: 310

    jeepsterhemi
    Member

    From: Rod & Custom, January1969......


    Five Carb-02.jpg
     
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  21. Countn'Carbs
    Joined: Nov 8, 2006
    Posts: 651

    Countn'Carbs
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    from CO

    An early version of Lowell Roemer's "The Scrambler".

    image.jpg image.jpg
     
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  22. Countn'Carbs
    Joined: Nov 8, 2006
    Posts: 651

    Countn'Carbs
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    from CO

  23. WTRGLO#1
    Joined: May 3, 2011
    Posts: 10

    WTRGLO#1
    Member
    from Florida

    1_1319_orig.jpg
    The 23 t-bucket with the five carbs was my father's. He originally used the setup in a 50 Chevy, then a 33 Plymouth coupe. He cut the roof off the coupe and made it a C/SR. The motor went into the t-bucket in 1965. In 1966 the motor was changed to a 292 with dual quads. During 1966 season he held the NHRA record a few times. The intake and headers made by my grandfather still exist and are used in a recreation of the t-bucket. My father also still exists and will be 81 in a few weeks. He still races the car now with a single Holley.
     

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  24. Countn'Carbs
    Joined: Nov 8, 2006
    Posts: 651

    Countn'Carbs
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    from CO

  25. cederholm
    Joined: May 6, 2006
    Posts: 1,334

    cederholm
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    Cool thread. I only have three on my stovebolt.

    ~ Carl
     
  26. BJR
    Joined: Mar 11, 2005
    Posts: 4,281

    BJR
    Member
    from Minnesota

  27. Deucedreamer
    Joined: Jan 11, 2010
    Posts: 479

    Deucedreamer
    Member
    from BC Canada

    I put a 302 jimmy 6 in my '40 chev pu. I was going to run a 5 carb manifold but decided against it for tuning reasons. Instead I put a 6/71 blower and dual 4's on it. Looks amazing, but ran warm all the time. I never got the bugs worked out of it, still have it though. Marriage, kids, house has put it on the back burner. Haven't driven it in 13 years. Maybe this year........
     

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