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Thread: dart big m chevy block

  1. #1
    Member JUNIOR BUILDER
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    dart big m chevy block

    does this block take the 300 taller lifters with solid roller?also will this effect pushrod length or is the cup in the same spot with just a taller body?

  2. #2
    Senior Member RACING JUNKIE
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    Cup is in the same spot just taller body. A lot of people use them.
    David Lanning
    IHRA NHRA 387B

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

  3. #3
    Senior Member EXPERT BUILDER
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    Re: dart big m chevy block

    Quote Originally Posted by taps
    does this block take the 300 taller lifters with solid roller?also will this effect pushrod length or is the cup in the same spot with just a taller body?
    Use the tall ones
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  4. #4
    Have your machinist check the clearance on the lifter bores. Both my blocks had to have the lifter bores hone to the proper clearance. It can be catastrophic if the lifters stick . Needs about .0015 to .002

  5. #5
    Senior Member RACING JUNKIE
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    x 2 supergass

  6. #6
    Senior Member RACING JUNKIE oldandtired's Avatar
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    Quote Originally Posted by ashbros
    x 2 supergass
    X3 but make sure the machinest knows what he is doing. Those lifter bore hones cut fast.

    Dave
    Dave
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    "All that is necessary for the triumph of evil is for good men to do nothing" Edmund Burke

  7. #7
    Senior Member RACING JUNKIE
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    I'd hope any place you guys took your stuff to would check this .. if not run !
    David Lanning
    IHRA NHRA 387B

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

  8. #8
    Quote Originally Posted by hammertime
    I'd hope any place you guys took your stuff to would check this .. if not run !
    Well you would think so but two different machinist around here didnt check it and one had lifter seize on the dyno and hit valves.


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