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Coolant bypass lines/plugs LS6 Swap

This is a discussion on Coolant bypass lines/plugs LS6 Swap within the External Engine forums, part of the LSx Technical Help Section category; One more question on my LS1 ->LS6 intake swap. Does anyone have pics of the coolant bypass lines/plugs on top ...

  1. #1
    NY Representative Vertiviper's Avatar
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    Coolant bypass lines/plugs LS6 Swap

    One more question on my LS1 ->LS6 intake swap.

    Does anyone have pics of the coolant bypass lines/plugs on top of the engine block?

    I would imagine I remove the old lines, plug the holes in the back and hook up the new lines in the front to the TB..

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    Quote Originally Posted by Vertiviper View Post
    One more question on my LS1 ->LS6 intake swap.

    Does anyone have pics of the coolant bypass lines/plugs on top of the engine block?

    I would imagine I remove the old lines, plug the holes in the back and hook up the new lines in the front to the TB..
    Thats correct, remove the "X" shaped LS1 coolant lines and the LS6 will just go across the front.

    I don't have any pics right now. Currently in the middle of H&C swap...but once I start putting it back together I can try and post up pics if you still need it.

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    Quote Originally Posted by peterlawl84 View Post
    Thats correct, remove the "X" shaped LS1 coolant lines and the LS6 will just go across the front.

    I don't have any pics right now. Currently in the middle of H&C swap...but once I start putting it back together I can try and post up pics if you still need it.
    Thank. I'm juuussttt making sure. The plugs it comes with more or less just get seated? I didnt see any threads at my quick glance.

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    Yea just seat them down and then there should be a screw to hold them down. One on the top rear of each head.

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    Quote Originally Posted by peterlawl84 View Post
    Yea just seat them down and then there should be a screw to hold them down. One on the top rear of each head.
    The old screws holding the old lines in place i'm guessing would work (same thread pattern into the block)?

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    Yea, they should work...thats what mine looked like when I removed my intake. (I had a shop do actual swap from LS1 -> LS6 intake years ago, but the screws looked the same front to back when I took it apart last wkend)

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    Alrighty..I think I have a good handle on this. I'll most likely tackle this on Saturday, and pending arrival of new gaskets finish it!

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    sold: 1999 firebird
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    heres mine


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    Quote Originally Posted by justinmc978 View Post
    heres mine

    Click for full size
    You did the TB bypass mod I assume?

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    Senior Member justinmc978's Avatar
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    sold: 1999 firebird
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    yeah, the line that runs under the bellow is the coolant, just thought i'd put a pic up

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    Not sure if you still need pic, but here is a pic of the block off piece on the back of one of my heads.


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