bmxer8699

iTrader: (16)

I was told by someone that by using the coolant plugs to plug the rear coolant lines, causes the car to overheat.

is this true? and if so, should i just use another front coolant crossover pipe?

Zitty'sZ

iTrader: (29)

If that were true , don't you think GM would not have used them on thier cars ?

Mikes96z

iTrader: (39)

No you're fine.

bmxer8699

iTrader: (16)

ah alright, so just use the rear plugs and be done with it?

stevied916

iTrader: (30)

I've ran mine with block off plugs in 110 degree heat hard and never had any problems.

Aaron1017

iTrader: (3)

I just ground down the bottom of the LS6 manifold to fit over the older LS1 style steam/head vents.

slt200mph

iTrader: (42)

After 147,000 miles I have seen no problem with over heating ..

GuitsBoy

iTrader: (4)

Lies, all lies!

bmxer8699

iTrader: (16)

alright going on today

2000Hawk

iTrader: (5)

Can you guys explain the overheating problem, this is the first i have heard about it when installing an LS6 on the LS1.
-Joel

bmxer8699

iTrader: (16)

a mechanic told me The rear 2 cylinders have overheating issues if you use the rear plugs.

GuitsBoy

iTrader: (4)

Get a new mechanic. Theres no reason not to use the plugs. The 2001+ LS1 motors came this way from the factory!

2000Hawk

iTrader: (5)

So from what im understanding you can't just install an LS6 and be done with it? I thought for an LS1 all you have to do is trim the bottom/new coolant lines, and thats it. Again im still with the LS1 intake, so this information can help me in the future.
-Joel

bmxer8699

iTrader: (16)

^ you can grind down the ribs of the ls6, or use a front coolant crossover pipe and 2 rear plugs.

Shawn MacAnanny

iTrader: (12)

From what i understand it was called 'steam vent' and was to go back to the TB, then to the coolant tank which sat higher. If you were getting air somewhere in the system this is how it would bleed out. Otherwise you may have an air pocket somewhere in the system. This is just what i have read and what i understood from it. I ran mine to my radiator in my swap, didnt know i could block it off.

2000Hawk

iTrader: (5)

So if you run the LS6 coolant pipes, and cover off the rear thats were people are encountring the overheating problem. So for those that just grind down the tabs under the intake, they don't un into this problem correct?
-Joel

bmxer8699

iTrader: (16)

correct,^^

as for the overheating issue, i will find out after it stops raining and i can go thrash on my car,

2000Hawk

iTrader: (5)

Oh Ok, thanks for the info.
-Joel