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    Author Topic: 340 intake crack?  (Read 796 times)

    Offline clinton5

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    340 intake crack?
    « on: June 03, 2016 - 02:57:40 PM »
    After magnifluxing I have a crack in my intake on an exhaust port . Just thinking of blocking it off.
    My question is do I or should I block off both sides? It is the original 70 intake and I want to keep it that way. Thanks guys
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    Offline CUDA JAS

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    • vroooooom!
    Re: 340 intake crack?
    « Reply #1 on: June 03, 2016 - 03:19:34 PM »
    Quote from: clinton5 on June 03, 2016 - 02:57:40 PM
    After magnifluxing I have a crack in my intake on an exhaust port . Just thinking of blocking it off.
    My question is do I or should I block off both sides? It is the original 70 intake and I want to keep it that way. Thanks guys

    not sure I follow...you have a crack on the an exhaust port on you intake manifold???

    Do you have pictures of the crack??

    Jason
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    74 'cuda 360/727



    Gearhead: car nut, automotive enthusiast, one who loves hot rods, muscle cars, hot trucks, burnin' rubber and neck snapping performance. 

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    Offline burdar

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    Re: 340 intake crack?
    « Reply #2 on: June 03, 2016 - 04:46:16 PM »
    Cracks through the exhaust crossover are fairly common.  My original intake was cracked there too.  The machine shop showed me where the crack went all the way up through the carb flange.  They thought there would be a definite vacuum leak.  I used a different intake.
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    Offline 1 Wild R/T

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    Re: 340 intake crack?
    « Reply #3 on: June 03, 2016 - 08:36:28 PM »
    Quote from: burdar on June 03, 2016 - 04:46:16 PM
    Cracks through the exhaust crossover are fairly common.  My original intake was cracked there too.  The machine shop showed me where the crack went all the way up through the carb flange.  They thought there would be a definite vacuum leak.  I used a different intake.

    Early form of EGR...
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    Offline clinton5

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    Re: 340 intake crack?
    « Reply #4 on: June 05, 2016 - 11:33:38 PM »
    Quote from: clinton5 on June 03, 2016 - 02:57:40 PM
    After magnifluxing I have a crack in my intake on an exhaust port . Just thinking of blocking it off.
    My question is do I or should I block off both sides? It is the original 70 intake and I want to keep it that way. Thanks guys

    Any advice on using blocking plates on the exhaust crossover on my intake manifold?
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