Timonator

iTrader: (5)

Could someone please tell me the difference in the coolant crossover pipes when switching from an ls1 intake to an ls6 intake? thanks

Tainted

iTrader: (9)

you dont NEED them. you can grind the ribs down on the ls6 intake and re use the ls1 coolant lines

dpw41285

iTrader: (26)

what if its a metal ls6 manifold...

dpw41285

iTrader: (26)

plus you wanted the differences in the pipes correct?

Tainted

iTrader: (9)

ive enver heard of a metal LS6 manifold....

dpw41285

iTrader: (26)

how bout a metal ls6 style...since i am upgrading to a weiand ls6 manifold do i not neeed coolant crossover

Tainted

iTrader: (9)

I know the LS6 composite manifolds you need tog rind down the ribs to sue the ls1 lines or use the ls6 lines. you dont NEED the ls6 lines if you dont wanna mess with them. and i still havent seen no damn LS6 metal intake

** OHHHH now I know what the hell youre talking about lol I had forgot about the z06 manifold being metal. Im not sure if you need them on it or not

dpw41285

iTrader: (26)

tainted you sounded like you were getting upset...

MRussell

The Back Coolant Pipe Is Removed And Plug The Coolant Holes In The Head, And The Front Coolant Pipe Crosses Over From One Head To Another. I Got Mine When I Ordered My Ls6 Intake From Tsp.

dlandsvZ28

Don't know where the thread is but there is some discussion that it's not a bad idea and certainly won't hurt to keep the rear coolant lines due the fact that the # 7 hole always running hotter. Some have suggested that this might be why the #7 detonates faster and burns the piston (steam pockets - cooler is always better).

I don't want to start a debate- just that origin of the thread was information gleaned from a GMC engine tech site.

It makes sense - why block off something that GM installed? Bean counters that they are - they don't engineer, design, and install stuff unless it's needed.

The lines are evidently there for a purpose. Next time I pull the manifold I'm going to request that the installer re-attach the rear coolant lines - my motor is ATI charged.

Timonator

iTrader: (5)

So what coolant pipe parts do I need for the ls6 conversion?

joecar

If you get 2 front pipes, install one in front and one in back, run hoses from each to a Y (run the hoses on the outside, next to the valve covers), and then run another hose from the Y to the radiator...

this will give you two steam paths and no need to grind the bottom of the intake.

dlandsvZ28

I don't think you do need to buy any parts - just grind clearance on the composite manifold and keep the coolant lines attached.

Here are some pics of the lines - Lingenfelter calls the Weind Manifold an LS6 Manifold and its metal.


http://www.holley.com/data/Products/.../199R10267.pdf

mpsoldier

iTrader: (3)

the part numbers you are looking for is 12602544, some guys buy the plugs for the back and some guys run a second "front" coolant pipe on the back as well, either run it up to the tube to the front or block it off, this way you'll still get coolant by cylinders 7 and 8

and the difference is that your coolant pipes now look like an I and what the ls6 style looks like is

. .
__ with the two dots at the back of the motor symbolizing plugs and the line is the cross over tube 12602544

Timonator

iTrader: (5)

Ok,I understand.Thanks for all the help.But now I'm wondering is it ok to block off the back or not?

brad8266

iTrader: (23)

grind the bottom, it works fine. Leave the cooling lines in place.

Timonator

iTrader: (5)

You guys are killin me.

Tainted

iTrader: (9)

gah trust me I was... i had a looooooooooooooong day yesterday

cws T/A

iTrader: (3)

http://www.ls1howto.com/howto/geniii...//IMAGE011.jpg 2 front 2001+ coolant lines vs stock 1998-2000

http://www.ls1howto.com/howto/geniii...//IMAGE013.jpg Pull off the hose for the rear one and cap it.

http://www.ls1howto.com/howto/geniii...//IMAGE015.jpg problem solved


https://ls1tech.com/forums/forced-induction/630983-will-ls6-coolant-tube-conversion-hurt-cooling-system-performance.html

SIC LSX

iTrader: (10)

here is what i did! I heated them up with a small torch and put them in a vise and crimped the **** of of it! been a year now and no leaks