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Thread: header bolts and gaskets

  1. #1
    will work for food! phatfarmer2's Avatar
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    header bolts and gaskets

    what kinda bolts to you run that dont lossen up.. mine all were compoletly loose with in a week of driving my blazer when it was on the road.. are there some types of locking header bolts? or what about thread locker or soemthign?

    also whats a good header gasket to run?
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  2. #2
    Zombie Killer 6SpeedBlazer's Avatar
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    Re: header bolts and gaskets

    Originally posted by phatfarmer2
    what kinda bolts to you run that dont lossen up.. mine all were compoletly loose with in a week of driving my blazer when it was on the road.. are there some types of locking header bolts? or what about thread locker or soemthign?

    also whats a good header gasket to run?
    my headers came with bolts and they are still tight after about 15 start to full temp cycles.

    im also using rtv ultra cooper instead of gaskets

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  5. #5
    Registered User ZZ4Blazer's Avatar
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    I like the dead soft aluminum gaskets myself. Seem to be working pretty decent.

    Unless your using a set of sanderson headers, in which you should follow their instructions using rtv
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  6. #6
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    hey phat, try tightening them down, and do it once more maybe a week later and see if they stay. Mine are the ones that came with hedman, i put them on and havent touched it since.


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  7. #7
    Double Bagged s10blaza's Avatar
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    copper RTV on the gaskets, dead soft aluminum collectors and ARP studs with teeth lock washers

  8. #8
    Too Low For Fat Hoes Pushrod's Avatar
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    Seems i always end up with ARP bolts for header bolts, when changing the gaskets or installing i always tighten well, start it up and let it get good and hot, shut it off then once the motor is back to cool go back over all the bolts again. Some will sorta loosin. I also always start in the middle and go out. Remember not to tighten one tight first thing, snug each then do the cross pattern as if like you were installed a cylinder head.

    Also on gaskets if you dont want to spend a crazy amount on copper or aluminum buy some Mr. Gaskets Ultra Seals. Cheap but last for a long while.

  9. #9
    5.7L VORTEC 350 blazin4low's Avatar
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    after going though every type of headder gasket, cooper, dead soft aluminum, ultra seals......i said the hell with it and bought some good old paper and put RTV around each port on both sides of the gasket...then found some headder bolts that use safety wire to keep them from backing out...the safety wire looks pretty cool too
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  10. #10
    It's all about to change winditup57's Avatar
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    Re: Re: header bolts and gaskets

    Originally posted by tippmann243
    my headers came with bolts and they are still tight after about 15 start to full temp cycles.

    im also using rtv ultra cooper instead of gaskets
    I am with him..but I have more start times than he does without fail. I also run the sandersons...which are for sale...:smoker:
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  11. #11
    Zombie Killer 6SpeedBlazer's Avatar
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    Re: Re: Re: header bolts and gaskets

    Originally posted by winditup57
    I am with him..but I have more start times than he does without fail. I also run the sandersons...which are for sale...:smoker:
    my headers were on a motor for over 3 years and they never developed a leak :D

    the original owenr said to use rtv and im very happy with it so far

  12. #12
    Senior Member bigjsp's Avatar
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    I always have like the cheaper metalized gaskets that you break into 3 pieces,.......... but they are harder to install.



    I tend to use the Copper Rtv on everything since I don't really use enough to justify buying regular and hitemp



    I also prefer allen style bolts

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