Hows this for a 408 Drag Engine

Small Block Mopar Engine

  1. WRB426

    WRB426 Insane 4 Mopars FABO Gold Member

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    I couldn't agree more!
     
  2. goldduster318

    goldduster318 Overzealous Car Modifier

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    Awesome!!! Lets hope my little 340 surprises everyone too :)
     
  3. Mad Dart

    Mad Dart Nothing to see Here!

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    So what did you do to those heads? Did you buy them Raw CNC ported from Bryce at Airwolf?
     
  4. 3406pk

    3406pk Well-Known Member

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    I liked how the HP curve was gentle slope after peak. It held the power for 4-500 rpm after peak. Good show.
     
  5. MRL Performance

    MRL Performance Well-Known Member

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    I got them from Procomp themselves, Im a dealer. I can get just as much flow out of them as Airwolf. These ones flowed 306/229 @ .650" and my bench is stingy. They were raw and I put 2.08/1.60 valves in it.
     
  6. Mad Dart

    Mad Dart Nothing to see Here!

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    PM Sent
     
  7. swinger340

    swinger340 Well-Known Member

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    Awesome... About all I can say.
     
  8. OldmanRick

    OldmanRick Well-Known Member

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    Sorry I missed all the fun this time Mike. Hopefully i'll get a guess in on the next monster :smile:.

    That's going to be a great engine in that light car....Congrats!
     
  9. MRL Performance

    MRL Performance Well-Known Member

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    Here are some pics of the car being built.
     

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  10. MRL Performance

    MRL Performance Well-Known Member

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    Still waiting to see if the block/caps need to be welded or not. This is a bummer but we have to get it right. Damn old 340 blocks.
     
  11. tubtar

    tubtar Well-Known Member

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    The specs on the motor were good for a smile. Very nice.
    But the Colt ?
    That has me fully aroused. :D
    Should be sneaky fast for a pump gas small block project.
     
  12. WRB426

    WRB426 Insane 4 Mopars FABO Gold Member

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    Looks like it will be a handful. Quite the monster.
     
  13. bad440

    bad440 everything,all the time..

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    • Like Like x 1
    • Abodybomber

      Abodybomber Breaking street machines , since 1983.....:) Legendary Member

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      Weapon of destruction? Subscribed....
       
    • goldmember

      goldmember Well-Known Member

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      Really sounds about right for the comp and intake. what LSa are those lobes on? what ICL? When the 4" cranks(yep cast crap) came out many years ago we built 408-416's that made 565-570hp and 550ftlbs at low RPM with J heads,a little more comp but pretty weak heads and peak hp would end up around 5800-6000rpm. Made great street/strip engines and ran 10.50's in decent street A bodies. your combo in a Colt with converter/gear should run easy 9's without much work.
       
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