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Thread: ls3 into obs crew cab

  1. #21
    Join Date
    Dec 2011
    Location
    hastings, mn
    Posts
    49
    If you wanted to do some custom headers you can get flanges for around 50-60$ this was the route I was going to go but the engine I bought came out of an obs project and came with a set of the schonfield headers already. Good luck with the swap that will be soooo sick!

  2. #22
    Join Date
    Jan 2012
    Location
    Montana
    Posts
    30
    Damn, that looks a lot nicer than my CCLB.

    Did you ever find anything for headers?

    I just got done doing an intake gasket and the updated electronic injectors in my CC, and it made me realize LS motors are much easier to work on. I'm addicted and want to start motor swapping everything now.
    88 RCLB: LS swap in progress
    00 CCLB
    03 Yukon Denali: Wife's "soccer mom mobile"

  3. #23
    Join Date
    Feb 2012
    Posts
    108
    I found 1 7/8 from southern performance but i haven't found any install pictures for clearance , reason im wanting 1 7/8 is that i migth consider a s/c upgrade

  4. #24
    Join Date
    Feb 2012
    Posts
    108
    ok guys , i finally pull the plug on headers ended up geting schoenfeld with coating, i also ordered dynatech high flow cats and mounting adapter plates .,,,,
    know i decicded im going to go a different route im going to end up getting an lsx376 .I will be getting an ls3 intake and maybe consider a s/c down the road. sa for know i need some assistance on deciding which oil pan to order, and ls3 coil packs either stock or msd

  5. #25
    Join Date
    Feb 2012
    Posts
    108
    ok guys i wanted to give yall an update . im about ready to start the swap Im going to end up using an lsx376 now i just odered the ls3 intake for it does any of u know what part number trotle body comes with, it says is an 2009 corvette intake with all the parts.
    im looking to see if the trottle will work with the dwp from the harness i got which is the one used on the ls3erod .
    the setup will be more like the erod with an lsxblock

  6. #26
    Join Date
    Oct 2011
    Location
    San Antonio TX
    Posts
    1,184
    If the intakes of a 06+ vette or 2010+ camaro then itll have 90mm dbw.


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  7. #27
    Join Date
    May 2008
    Location
    Crowder, OK
    Posts
    8,064
    EBay for ls3/7 TB. They're about 150$.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4


  8. #28
    Join Date
    Feb 2012
    Posts
    108
    the intake is gm 12610434
    its says its 2009 production setup.

  9. #29
    Join Date
    Feb 2012
    Posts
    108
    yeah it comes with th 90mm trottle i just dont have the part number to do more research , im looking to see if it will work pedal 10379038or if i need a different one

  10. #30
    Join Date
    Feb 2012
    Posts
    108
    Hello,
    Been a long time since last been on here,
    Wanted to check in and give some update. I’ve had the truck parked for the last year and half. I have finally put it back together from redoing the suspension and brakes. I am now planning on doing either a turbo install or a supercharger.
    I ended ip using the holley R4 a/c bracket on the initial swap and don’t yet know if this works with magnuson Sc.

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