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Thread: head question

  1. #1
    Junior Member SHOW GUEST
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    Saint Joseph,MI
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    head question

    i was wondering what u guys think about dart pro 1 345;s that have been ported and i think the # are around 390 area not sure what the other #s were. Was thinking about using them on a 572. Bowtie block with a bore of 4.560 and 4.375 crank. As far as i know this is the fartherest i can take this bowtie block. OR am considering a big chief style head but not sure if it would be great for this combo. Just curious which would be the way to go with this combo. Thanks in advance for any advice .

  2. #2

    heads

    A buddy of mine had a 572 4.500x4.500 with pro1 345 heads with some port work and it dynoed 900hp.Those heads will also work good with the combo you have.

  3. #3
    If you go with the chief style. It'll be well over 1000hp pushing 1100 depending on who builds it and what componets are used. 1050hp on my little 522ci and shooting for 1075-1100 soon. This is with 18* Brodix Oval port Big Dukes from Curtis Boggs. I would give him a call or heck he might even post on here as he comes on here.
    http://i76.photobucket.com/albums/j4...a/c9e78afe.jpg
    522ci 1110HP 1803* Dukes, cast intake,1250 on gas. Heads By CBOGGS
    www.raceflowdevelopment.com

  4. #4
    Senior Member SENIOR BUILDER
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    This head would make 1050+ on a well built 572
    http://www.racingjunk.com/post/10374...ictor-cnc.html

    or for a 1200 + you could use this,
    http://raceflowdevelopment.com/dart11.html

    I'd use the Victor CnC head really, .. it's a damn good deal, ..
    make great power, .. and will smoke the Dart and Brodix cnc heads.

    Curtis
    ----------------------------------------
    Race Flow Development
    Simultaneous 5-axis CNC Porting
    http://www.raceflowdevelopment.com

  5. #5
    Senior Member RACING JUNKIE
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    May 2003
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    Coldwater, MI
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    Quote Originally Posted by cboggs
    This head would make 1050+ on a well built 572
    http://www.racingjunk.com/post/10374...ictor-cnc.html

    I'd use the Victor CnC head really, .. it's a damn good deal, ..
    make great power, .. and will smoke the Dart and Brodix cnc heads.

    Curtis
    Curtis do these heads require anything special ? compaired to a normal head
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  6. #6
    Senior Member RACING JUNKIE
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    Quote Originally Posted by hammertime
    Quote Originally Posted by cboggs
    This head would make 1050+ on a well built 572
    http://www.racingjunk.com/post/10374...ictor-cnc.html

    I'd use the Victor CnC head really, .. it's a damn good deal, ..
    make great power, .. and will smoke the Dart and Brodix cnc heads.

    Curtis
    Curtis do these heads require anything special ? compaired to a normal head
    TTT any of you guys know ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  7. #7
    Senior Member MASTER BUILDER
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    Newport News, VA
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    David,

    My understanding is that there are no shaft mounted rockers available yet but there is a stud girdle.

    George
    http://www.gdmii.com/pics/81launchvidcapsig.jpg
    1981 Camaro @ 2594 lbs.
    496 cu. in. on 1150 Rupert alky
    Brodix BB2X heads touched by the magic hands of Curtis Boggs
    5.470@125.56 Best 60' 1.18
    www.motorsportsvillage.com

  8. #8
    Senior Member RACING JUNKIE
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    Quote Originally Posted by gdmii
    David,

    My understanding is that there are no shaft mounted rockers available yet but there is a stud girdle.

    George
    Thanks George, that makes it taugh to want to run them without using a shaft system.

  9. #9
    Senior Member SENIOR BUILDER
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    Sorry,

    A little busy, and didn't get back to see your post, ..

    T&D has a shaft system with a one piece intake stand, .. about $1400
    Jesel has a Sportsman system with individual stands and a tie bar, $1150

    Depending on who's CnC head you use would effect the piston, but as
    of right now a dome to fit the stock un-ported chamber and the Musi CnC head
    is available from Diamond.

    A custom piston has been designed for my chamber by Diamond and available
    through my shop but my chamber will also take most aftermarket dome shapes, ..
    but like with any race part, you need to check and adjust.

    I also have a "small" CnC chamber kinda like the Musi chamber but it sacrifices
    flow numbers all the way through the lift range.

    I have the stud girdles in stock, . . ..

    Current TRUE flow numbers
    lift - int
    .1 - 74
    .2 - 160
    .3 - 251
    .4 - 313
    .5 - 370
    .6 - 403
    .7 - 432
    .8 - 448
    .9 - 455
    1" - 461

    Curtis
    ----------------------------------------
    Race Flow Development
    Simultaneous 5-axis CNC Porting
    http://www.raceflowdevelopment.com


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