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348 Tri Power Manifold Value

Discussion in 'The Hokey Ass Message Board' started by Hdonlybob, Sep 6, 2012.

  1. Hdonlybob
    Joined: Feb 1, 2005
    Posts: 4,115

    Hdonlybob
    Member

    First of all, I don't have the complete info yet, but will soon. :)
    My Sisters Grandson has a chance to take in on trade on a motorcycle a 348 Tri-Power intake.
    It has the front and rear carbs, is supposed to be original
    ~1958 and is cast iron.
    Most linkage is with it...no air cleaners.
    I told him to get me the numbers off of it, as well as a some pictures....
    Any rough idea of value on this ? ...also I assume this will fit a 409 ?
    Thanks for any help, as if he does this deal I will wind up selling it for him.
    Cheers,
    Bob
     
  2. neilswheels
    Joined: Aug 26, 2006
    Posts: 1,213

    neilswheels
    Member
    from England

    try 348-409.com. have a look at their ads
     
  3. slickbastard
    Joined: Feb 16, 2011
    Posts: 18

    slickbastard
    Member

    If the front and rear carbs are the correct ones, probably about $300-350. I actually need one for my wagon. I have seen the intakes alone go for the $100 range at local swap meets.
     
  4. Larry T
    Joined: Nov 24, 2004
    Posts: 7,875

    Larry T
    Member

    Bare intake isn't worth a lot. I had one for sale for 100.00 for a long time and never sold it. Front and back carbs are worth more than the intake.

    The intake will fit the standard port 409, not the high performance heads.
     

  5. Bob I would think that they are a little pricey these days, especially if they have correct front and rear carbs.

    I wouldnt want to give more then say 300-500 for one the way you described but I'm am a tight bastard.
     
  6. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    Yep, mint bare intakes go for a max of $150, usually more like $100. Having the correct (if they are in fact correct) end carbs makes it worth a little more. Look for idle screws, there should be none on the end carbs. The middle carb can be just a regular 2G Rochester, so not having that isn't a big deal.

    If it has the correct end carbs and is in good condition, I would say the $350 to $500 is reasonable.

    Don
     
  7. Curt B
    Joined: Oct 15, 2009
    Posts: 325

    Curt B
    Member

    Way off topic here but this statement reminded me of something I heard the other day that cracked me up...."That guy's so tight only dogs can hear him fart".
     
  8. 61 chevy
    Joined: Apr 11, 2007
    Posts: 891

    61 chevy
    Member

    so, does it just idle off of the middle carb :confused:
     
  9. yes, idle is off the middle carb with a vacuum can and switch to kick in secondary carbs.
     
  10. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    Uh huh, the end two carbs are just "dumpers". You essentially run off of the center carb all the time and add the two end ones when you floor it. That is when they begin to contribute.

    Here are true tripower bases laid out. You can see that the end ones do not have idle mixture screws on the front, and also the shaft arms are less complicated . True end carbs will also not have chokes, but will have accelerator pumps.

    [​IMG]

    Don
     
    Last edited: Sep 6, 2012
  11. Squablow
    Joined: Apr 26, 2005
    Posts: 17,388

    Squablow
    Member

    "most linkage" would make a difference depending on what that means, plus I'm not sure what they came with but there should be some kind of fuel block or at least a T fitting to split the fuel lines off to the 3 carbs, that'd make a difference too.

    The Pontiac ones have a special water neck just for tripower, not sure if Chevy had that. Sounds like a $400 unit give or take.

    Another point to make, I know the '58 heads are '58 only, so I wonder if the intake is also '58 only? I'm not sure what made the '58 heads different, but it'd be something to look into. Not sure if that would be good or bad for value or not, but it might affect interchangeability.
     
  12. Larry T
    Joined: Nov 24, 2004
    Posts: 7,875

    Larry T
    Member

    The intake will work on any standard head W engine. The difference in the 58 and later heads is that the 59 up have a couple of extra cooling passages around the sparplugs. Gotta keep the heads and blocks matched up unless you want to plug some passages.
     

  13. Which I have done. Late heads on an early block. Easy job.
     
  14. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member

    Carbking posted recently, that the 58 348 tri-power carbs are different than 59-up as the 58 uses front fuel inlets, not side inlets.


    So, I would assume those are the same as 57-58 Olds carbs, without filters inside the inlets.
     
  15. DeucePhaeton
    Joined: Sep 10, 2003
    Posts: 1,013

    DeucePhaeton
    Member

    What makes a '58 head, only 58 is the early heads didn't have a water jacket around the spark plugs. The later heads did have this provision and if you try to use a later head on an early block you'll end up with water on the floor. They don't match. The intake will work on 348s across the board.
     
  16. DeucePhaeton
    Joined: Sep 10, 2003
    Posts: 1,013

    DeucePhaeton
    Member


    Negative. Not the same.
     
  17. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member


    What's different between 58 Chevy and the Olds? or do you have a pic of 58 348 trips?
     
  18. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida


    Here you go, F & J:

    [​IMG]

    [​IMG]

    [​IMG]
     
  19. DeucePhaeton
    Joined: Sep 10, 2003
    Posts: 1,013

    DeucePhaeton
    Member

    The Olds carbs are physically larger. Larger throttle plates too.
     
  20. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member

    Don, those are side inlets. The ones that Carbking said were 58-348, he says they would be front inlet.

    I doubt I'll have time to remove a carb, but I do have a bare 348 trip intake, and a few Olds J2 setups to compare bases....I thought they should be the same base sizes. unlike the later ones in the mid 60s
     
  21. Impalaguy1958
    Joined: Dec 12, 2005
    Posts: 111

    Impalaguy1958
    Member
    from Paducah Ky

    I have a set of 57 J2 carbs bolted to my spare 348 intake, they appear the same with front inlets


    Posted from the TJJ App for iPhone & iPad
     
  22. GOATROPER02
    Joined: Mar 22, 2006
    Posts: 2,059

    GOATROPER02
    Member
    from OHIO

    Chevy carbs are side feed...... Olds are front feed
    Here's both .....original carbs on original manifolds...... Both of these I did in house from unmolested original setups

    Tony
     

    Attached Files:

  23. carbking
    Joined: Dec 20, 2008
    Posts: 3,715

    carbking
    Member

    Chevrolet:

    1958 (3) small carbs with front fuel inlets
    1959~1961 (3) small carbs with side fuel inlets (like the ones Don and Tony pictured)

    1957 Olds (3) small carbs with front inlets, F & R have vertical throttle return
    1958 Olds (3) small carbs with front inlets, F & R have coil throttle return

    1957 Pontiac (similiar to 1957 Olds)
    1958 Pontiac (similiar to 1958 Chevy & Olds)

    1958 Cadillac (similiar to 1958 Chevy, Olds, & Pontiac)

    All of the above are SIMILIAR (same size, different arms, different venturii, different drilling on throttle bodies).

    Link to 1957 Pontiac, note vertical throttle returns (same on 1957 Olds), and front inlets:

    http://www.thecarburetorshop.com/1957passengerside3x2.jpg

    Jon.
     
  24. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member

    Thanks for the J2 info, Jon. I have a bunch i need to look at now. Some of mine have the vertical springs, but not all of them. I never noticed the coil returns before, that I can recall.
     
  25. DeucePhaeton
    Joined: Sep 10, 2003
    Posts: 1,013

    DeucePhaeton
    Member

    I give up? What is my Carb if not an Olds.
    7019058
    C B3
     
  26. DeucePhaeton
    Joined: Sep 10, 2003
    Posts: 1,013

    DeucePhaeton
    Member


    Found it:
    <table border="0" cellpadding="0" cellspacing="0"><tbody><tr height="14"><td align="RIGHT" width="32">1961</td><td align="RIGHT" width="24">8</td><td align="RIGHT" width="38">394</td><td width="5">
    </td><td width="136">AC</td><td width="64">Rochester</td><td width="92">2-GC</td><td align="RIGHT" width="52">7019058</td><td align="RIGHT" width="151">
    </td></tr></tbody></table>
     
  27. F&J
    Joined: Apr 5, 2007
    Posts: 13,222

    F&J
    Member


    Ah, you are not trying hard enough :D

    I tried google and got a hit on Jon's ID page on his website:

    <TABLE cellSpacing=0 cellPadding=0 border=0><TBODY><TR height=14><TD align=right width=32>1961</TD><TD align=right width=24>8</TD><TD align=right width=38>394</TD><TD width=5>
    </TD><TD width=136>AC</TD><TD width=64>Rochester</TD><TD width=92>2-GC</TD><TD align=right width=52>7019058</TD></TR></TBODY></TABLE>


    Edit, you DID try harder :)
     
  28. Clean it up, paint it up, polish it up so people can see how nice the intake and linkage looks. Then get some low dollar chrome air cleaners on the carbs. Then if it looks pretty good (which it should), run an ad stating the carbs need rebuild and ask $850.00

    I have seen setups like this go for $1500.00 in "A1" condition.

    My advice cost NOTHING and that is exactly what it's worth.

    Specs
     
  29. Quit hanging out in gay bars :D
     
  30. Read my reply above. it is easy to weld up the steam holes on late heads to mate to the early block.
     

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