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2004 LS6 Maintence

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Old Oct 29, 2015 | 12:57 PM
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Default 2004 LS6 Maintence

Hi everyone, Yesterday I received my LS6 in the mail (2004 CTS-V) for a swap. I am not sure of actual mileage, I just know it is "under 100k" I already have it on a stand to change the oil pans, and was curious if there is anything else that is recommended to do while the engine is easy to access? I plan on doing plugs, what brand is recommended for an engine that is going to see lots of high RPM abuse? How about the water pump, do those need replaced often? I am coming from the Subaru world where timing belt/pump are due at 100k, but as far as I understand the LS chain doesn't need any maintenance?

Thanks!
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Old Oct 29, 2015 | 01:06 PM
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It really all depends on how much money you want to spend and what do you feel like doing with the engine. Right now is a great time to add a cam because it's out of the car, but for general maintenance I would at the very least buy a set of GM blue performance springs and new valve seals ls6 style.
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Old Oct 29, 2015 | 01:35 PM
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I'm trying to avoid modding it at this point. The engine has a 6 month warranty and I don't want to do anything that would void it before I know it runs and is in good shape. I am planning on running it this season then doing some mods (supercharger) next winter.
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Old Oct 29, 2015 | 03:36 PM
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Originally Posted by novablue454
I'm trying to avoid modding it at this point. The engine has a 6 month warranty and I don't want to do anything that would void it before I know it runs and is in good shape. I am planning on running it this season then doing some mods (supercharger) next winter.
Would still do the springs and valve seals.
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Old Oct 31, 2015 | 02:20 PM
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Is this LS6 going into a Scooby, and if so, are you keeping it AWD??
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Old Oct 31, 2015 | 03:15 PM
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Ls6's are great. Check the sig for my results.

I would put fresh valve springs on it. I've heard of a few breaking them at 100k~
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Old Oct 31, 2015 | 05:35 PM
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Originally Posted by dailydriver
Is this LS6 going into a Scooby, and if so, are you keeping it AWD??
No, I'm a Subaru Technician for a living, can't say I care much for the cars other then as job security. It's going in an E46 BMW
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Old Nov 1, 2015 | 05:03 PM
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Originally Posted by novablue454
No, I'm a Subaru Technician for a living, can't say I care much for the cars other then as job security. It's going in an E46 BMW


At least a little different than the 'usual' 'Kouki'/240SX/etc. LSx drift swap.
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Old Nov 2, 2015 | 10:19 AM
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I mean, don't get me wrong, I love 240's, but I really love E46's.

So I opted to just replace the plugs (TR6's) and Wireset for now. Im going to get the engine in and running and then look at replacing the valvesprings once I know the engine is OK.
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Old Nov 2, 2015 | 05:31 PM
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Originally Posted by novablue454
Yesterday I received my LS6 in the mail
Please post pictures of your mailbox and mailman. lol
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Old Nov 2, 2015 | 07:34 PM
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Originally Posted by wssix99
Please post pictures of your mailbox and mailman. lol
haha, it came in an 18 wheeler...bolted together...with no liftgate. That was interesting.
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