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Generation III Internal Engine 1997-2006 LS1 | LS6
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lq4 6.0 +TSP Tsunami cam + 243

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Old 08-01-2009, 01:01 PM
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gm parts direct has the ls3 heads shipped for 500. can I still use my springs on ls3 heads
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Old 08-01-2009, 01:14 PM
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Originally Posted by TX RED
gm parts direct has the ls3 heads shipped for 500. can I still use my springs on ls3 heads
yes but check seat pres before using them
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Old 08-02-2009, 01:48 PM
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Ok are the ls3 rocker arms diff ? Do they have an offset?
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Old 08-02-2009, 07:22 PM
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Originally Posted by TX RED
gm parts direct has the ls3 heads shipped for 500. can I still use my springs on ls3 heads
Do you have a link? I couldn't find them...I would really appreciate any help.
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Old 08-02-2009, 09:27 PM
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http://www.gmpartsdirect.com/catalog/frameset.cfm
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Old 08-02-2009, 09:42 PM
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Originally Posted by TX RED
Do you have the part number?
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Old 08-02-2009, 10:37 PM
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*12615361

Engine Cylinder Head
I think it's the left it won't give both
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Old 08-02-2009, 11:34 PM
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Originally Posted by TX RED
*12615361

Engine Cylinder Head
I think it's the left it won't give both
Sorry to kind of mess up your thread but thanks for the info...So what else would be needed to run the heads...does it come with the whole valvetrain? Or what is needed to make it work...
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Old 08-03-2009, 01:15 AM
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From what I have seen the valvetrain is diff.
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Old 08-03-2009, 03:55 AM
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BUMP!

Looking into a LQ4/9 with a L92 top so I figure this will be a good follow

DM
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Old 08-03-2009, 12:32 PM
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this what i found
http://www.gmhightechperformance.com.../photo_07.html

looks like it's only on the intake side,exhaust rocker stays the same from the ls2
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Old 08-03-2009, 02:56 PM
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Originally Posted by TX RED
From what I have seen the valvetrain is diff.
so inorder to get those heads, i would have to buy springs, retainers, rocker arms?
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Old 08-04-2009, 12:56 AM
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Ya think so, I priced it all out. I'am just going to wait and find some used heads with the valvetrain
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Old 08-04-2009, 02:47 AM
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I'm making about 450rwhp with a lil ole 224r cam in my LQ4

still got a stock throttle body and one of those hated on BBK SSI Intakes as well
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Old 08-04-2009, 10:21 AM
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damn those are some good numbers.. hope to be there mabye a bit more. not going with big cam anymore going witha custom girnd. looks like ls3 heads like small cams too and make big power
Last edited by TX RED; 08-04-2009 at 10:29 AM.
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Old 08-04-2009, 01:28 PM
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Originally Posted by TX RED
damn those are some good numbers.. hope to be there mabye a bit more. not going with big cam anymore going witha custom girnd. looks like ls3 heads like small cams too and make big power
all I can say is AFR!!!!!!!!!!

i really really feel that those are what made me hit those numbers... i mean really, look at the rest of my mods. Those are the part of my build with the most potential to produce hp...
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Old 08-22-2009, 01:59 PM
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tx red ... get the lq4 l92 heads 90/90 set up f14 cam ....
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Old 01-10-2021, 02:15 AM
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Default Did you ever see what numbers it made?
Originally Posted by TX RED
damn those are some good numbers.. hope to be there mabye a bit more. not going with big cam anymore going witha custom girnd. looks like ls3 heads like small cams too and make big power
I’m building the basic same combo. Tsunami v2 Dual springs 243 heads trunnion upgraded hew performance hydraulic roller lifers and the holly high ram intake Just curious what numbers yall made with this set up
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Old 01-10-2021, 11:29 AM
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TX RED hasn't been here for almost 3 years.
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