racinbird

iTrader: (2)

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

davered00ss

iTrader: (4)

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.

racinbird

iTrader: (2)

So whats the purpose of these coolant lines then?

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.

UnleashedBeast

iTrader: (2)

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.

UnleashedBeast

iTrader: (2)

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.

racinbird

iTrader: (2)

So leave the front lines but delete the rear with plugs? that the best thing to do?

UnleashedBeast

iTrader: (2)

Yes, the 01-02 cars had delete plugs in the rear and the front line still running to the radiator.

racinbird

iTrader: (2)

Thanks!!

shep28

iTrader: (4)

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.

Viper

iTrader: (6)

"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. ).