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question on LS6 intake swap

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Old Feb 20, 2005 | 01:36 PM
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Default question on LS6 intake swap

Getting ready to do the LS6 swap, also thinking of doing TB coolant bypass. I was reading that you block off the rear two coolant passages, can you also block off the front two if you dont want that line going to the TB any more? or do you need the cross over pipe for cooling purposes? Ls1howto didnt say anything about that part of it. Thanks
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Old Feb 20, 2005 | 01:41 PM
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The front a.nd rear cooling tubes are different from the TB bypass tubes. you can cut your tubes and weld over the holes if you do not have 01-02 tubes.
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Old Feb 20, 2005 | 01:51 PM
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So whats the purpose of these coolant lines then?
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Old Feb 20, 2005 | 02:05 PM
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The coolant crossover tubes are meant to return some coolant to the radiator + ridding the coolant system of air. The tubes on the bottom of the TB are meant to help warm the air going into the engine on colder days.
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Old Feb 20, 2005 | 02:06 PM
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I think that his question is can he delete the line between the front crossover pipe and the radiator. This is the line that runs through the throttle body then to the radiator. I have thought the same thing. What would happen if you deleted that line.
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Old Feb 20, 2005 | 02:08 PM
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Originally Posted by technical
The coolant crossover tubes are meant to return some coolant to the radiator + ridding the coolant system of air. The tubes on the bottom of the TB are meant to help warm the air going into the engine on colder days.
I think you answered the question. Without the line going back to the radiator the system couldn't purged the air and would remain trapped in the system.
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Old Feb 20, 2005 | 02:23 PM
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So leave the front lines but delete the rear with plugs? that the best thing to do?
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Old Feb 20, 2005 | 02:49 PM
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Originally Posted by racinbird
So leave the front lines but delete the rear with plugs? that the best thing to do?
Yes, the 01-02 cars had delete plugs in the rear and the front line still running to the radiator.

Last edited by UnleashedBeast; Feb 20, 2005 at 02:57 PM.
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Old Feb 20, 2005 | 03:11 PM
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Thanks!!
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Old Feb 20, 2005 | 04:14 PM
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Do not break the oil pressure sensor found at the back driver side area directly behind the rocker cover. Mine broke when I took off the old intake.
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Old Feb 21, 2005 | 03:30 PM
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"The tubes on the bottom of the TB are meant to help warm the air going into the engine on colder days."

To further clarify, this was so the TB blade won't freeze up in REALLY cold weather ( i.e Nebraska, Canada -20 etc. ).
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