I'm going to get "Roasted " for this I know !! 400 thoughts ?

Mopar Racers Forum

  1. moparhunter

    moparhunter Well-Known Member

    Messages:
    487
    Likes Received:
    102
    Joined:
    Oct 5, 2006
    Local Time:
    10:27 PM
    OOOOK . Back story first. I have 69 Dart that I've had for far to long ( last drove is in 1999)
    the car has been apart forever and now I'm trying to put it back together for next year .
    like many of us I'm on a Budget and funds are tight .
    I have a 73-400 that I'm thinking of using for a yr / 2 to get the car moving and work the bugs out. I want the car to have a great sounding idle (rough) Its going to be a stock 400 with 906 heads/cam/ headers 4:10 Dana and 3500 stall convertor .
    I wish the 400 had more compression but they dont.
    I'm thinking abut the Comp cams CL21-602-5 Thumpr cam ( 507/494 ) do I have enough piston clearance ??
    I know its not going to be a great combination for this set up but If I'm being honest im more interested in the " sound " of the car then the performance ( for next year) future plans call for a 400 something stroker but because I have the rest of the car to reassemble its not in the budget for next summer and I'm tired of the car sitting.

    thoughts?
     
  2. RustyRatRod

    RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

    Messages:
    65,915
    Likes Received:
    39261
    Joined:
    Jun 7, 2010
    Location:
    Georgia
    Local Time:
    11:27 PM
    I think it's a great idea! That's what the Thumpr cams are made for. You have plenty of piston to valve clearance. Go for it! It'll sound nasty and with the converter and gears, it'll run nasty. Do it.
     
    • Like Like x 3
    • RustyRatRod

      RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

      Messages:
      65,915
      Likes Received:
      39261
      Joined:
      Jun 7, 2010
      Location:
      Georgia
      Local Time:
      11:27 PM
      You'll probably end up with something sounding like this.

       
      • Like Like x 5
      • moparhunter

        moparhunter Well-Known Member

        Messages:
        487
        Likes Received:
        102
        Joined:
        Oct 5, 2006
        Local Time:
        10:27 PM
        thats what I'm after how bad will it perform? I think with the 3500 stall and 4;10 it should be "OK"
         
      • moparhunter

        moparhunter Well-Known Member

        Messages:
        487
        Likes Received:
        102
        Joined:
        Oct 5, 2006
        Local Time:
        10:27 PM
        by the i've been following you 400 build . very nice !
         
      • RustyRatRod

        RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

        Messages:
        65,915
        Likes Received:
        39261
        Joined:
        Jun 7, 2010
        Location:
        Georgia
        Local Time:
        11:27 PM
        I think it'll haul the mail. How couldn't it?
         
      • RustyRatRod

        RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

        Messages:
        65,915
        Likes Received:
        39261
        Joined:
        Jun 7, 2010
        Location:
        Georgia
        Local Time:
        11:27 PM
        Thanks! I wish it could be a little more extravagant, but it's not and that's cool. It's "all" I can do though.
         
      • moparhunter

        moparhunter Well-Known Member

        Messages:
        487
        Likes Received:
        102
        Joined:
        Oct 5, 2006
        Local Time:
        10:27 PM
        I already have this cam out of my junk 383 that I’d like to run but I don’t think it’ll have lump I’m after ( never heard the 383 )
         
      • moparhunter

        moparhunter Well-Known Member

        Messages:
        487
        Likes Received:
        102
        Joined:
        Oct 5, 2006
        Local Time:
        10:27 PM
        D763C09E-6F1F-49DB-959C-584FDBD2A401.jpeg

        E2E15F22-00C9-4958-A8DD-1CBE8216213B.jpeg
         
      • RustyRatRod

        RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

        Messages:
        65,915
        Likes Received:
        39261
        Joined:
        Jun 7, 2010
        Location:
        Georgia
        Local Time:
        11:27 PM
      • moparhunter

        moparhunter Well-Known Member

        Messages:
        487
        Likes Received:
        102
        Joined:
        Oct 5, 2006
        Local Time:
        10:27 PM
        great thx !! obviously I'd like to use it ( cost) but ?
         
      • RustyRatRod

        RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

        Messages:
        65,915
        Likes Received:
        39261
        Joined:
        Jun 7, 2010
        Location:
        Georgia
        Local Time:
        11:27 PM
        It's ground on a 112 so it'd have to be "pretty big" to give the idle you're looking for.
         
      • moparhunter

        moparhunter Well-Known Member

        Messages:
        487
        Likes Received:
        102
        Joined:
        Oct 5, 2006
        Local Time:
        10:27 PM
        Sorry I’m not understanding
         
      • DentalDart

        DentalDart Well-Known Member

        Messages:
        3,147
        Likes Received:
        2074
        Joined:
        Jul 5, 2019
        Location:
        Las Vegas
        Local Time:
        8:27 PM
        That sound is :thumbsup:
         
        • Agree Agree x 1
        • pishta

          pishta I know I'm right....

          Messages:
          18,667
          Likes Received:
          8125
          Joined:
          Oct 13, 2004
          Location:
          Tustin, CA
          Local Time:
          8:27 PM
          It that just a mid plate that the starter is attached too? Im gonna make one then.......I already got the spare radiator, starter, cradle and a few gauges. Its gotta have the boat throttle for the carb.....
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

          Messages:
          65,915
          Likes Received:
          39261
          Joined:
          Jun 7, 2010
          Location:
          Georgia
          Local Time:
          11:27 PM
          It appears to be just a 90* pie shaped hunk of aluminum. Pretty smart.
           
        • MOPAROFFICIAL

          MOPAROFFICIAL FABO Gold Member FABO Gold Member

          Messages:
          6,843
          Likes Received:
          5780
          Joined:
          Jun 1, 2016
          Location:
          Beach
          Local Time:
          8:27 PM
          HL... high lift.

          Measure the lobe lift. Might be 250/260 @.050

          Worst case it's the opposite, lol
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

          Messages:
          65,915
          Likes Received:
          39261
          Joined:
          Jun 7, 2010
          Location:
          Georgia
          Local Time:
          11:27 PM
          That's what I found too, but nothing close to that 2526 part number. All like 22xx
           
        • 318willrun

          318willrun Utube channel 318willrun

          Messages:
          15,690
          Likes Received:
          16926
          Joined:
          Sep 13, 2013
          Location:
          I'm here
          Local Time:
          10:27 PM
          400's will haul the mail. What ET are you hoping to run? Keep us posted
           
        • moparhunter

          moparhunter Well-Known Member

          Messages:
          487
          Likes Received:
          102
          Joined:
          Oct 5, 2006
          Local Time:
          10:27 PM
          Honestly I probably wont even track the car next yr, just looking to drive/car show it, If it has so grunt all the better.
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

          Messages:
          65,915
          Likes Received:
          39261
          Joined:
          Jun 7, 2010
          Location:
          Georgia
          Local Time:
          11:27 PM
          Get a lift measurement on that cam. Do you have a dial caliper?
           
        • moparhunter

          moparhunter Well-Known Member

          Messages:
          487
          Likes Received:
          102
          Joined:
          Oct 5, 2006
          Local Time:
          10:27 PM
          I do but I'm not near the shop this weekend
           
        • 69conv

          69conv error 401 FABO Gold Member

          Messages:
          3,539
          Likes Received:
          4964
          Joined:
          Jan 27, 2013
          Location:
          Motor City
          Local Time:
          10:27 PM
          If you can get hold of @IQ52 he has done some amazing builds with low compression motors too.
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

          Messages:
          65,915
          Likes Received:
          39261
          Joined:
          Jun 7, 2010
          Location:
          Georgia
          Local Time:
          11:27 PM
          Do you know how to measure the lift with a dial caliper? It's not difficult. I can show you how if you don't know.
           
        • RustyRatRod

          RustyRatRod Bla de blizhibliz de blatde blizi bla bla FABO Gold Member

          Messages:
          65,915
          Likes Received:
          39261
          Joined:
          Jun 7, 2010
          Location:
          Georgia
          Local Time:
          11:27 PM
          Yes he has. And yet it still seems the first thing everybody wants to do is get compression on the ragged edge. It's just not necessary.
           
          • Agree Agree x 2
          1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
            By continuing to use this site, you are consenting to our use of cookies.