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Thread: Part Numbers needed for an LS1 swap

  1. #1
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    Hey Guys, these questions get asked quite a bit, and what better way than to make a sticky with all the part numbers you'll need. I'm open to suggestions, but for now I'll just start listing the parts. If you've done one, please reply and let us know, it'll be helpful to a lot of us.

    -PCM:
    99/00: Service Number 09354896 - used for manual throttle cable TB
    01/02: Service Number 12200411 - used for manual throttle cable TB
    '03: Service Number 12576106 - electronic throttle
    '04: Service Number 12586242 - electronic throttle
    If you're swapping a Gen III engine in an old body style truck, you have these PCM service numbers to choose from. There are exceptions, but this sums it up.

    -Engine Mounts: hotrodlane.cc

    -Complete Engine from oil filter to harness: www.hi-wayatuo.com


    I'll continue to update this as you guys reply with part numbers. Once this post gets very informative, we'll make a FAQ out of it.

    thanks for your input,

    allen

  2. #2
    Join Date
    Jun 2003
    Location
    Missouri
    Posts
    35
    OK, here is what I have:

    EGR blockoff plate: 12558346
    Transmission cooler lines: 15052885 150522879
    Throttle cable: 15712337
    Cruise control cable: 15712334


    That throttle cable will work in a 88-98 P/U you just hafta file the hole in the firewal a little.

    Just a FYI the 12200411 PCM was used for electronic throttle on 01/02 models. MY '02 had ETC from the factory and that is the # it uses.

    I have more part numbers but they are just misc gaskets, etc.
    2002 SWB 2WD crate 6 liter/Whipple, 4L80E, comp cam, ASM headers, NOS, etc, etc.... best of 7.29 at 97 mph in the 1/8th

    1994 Work Truck 2WD Supercharged 5.3/4L80E combo. Has had a LT1 for the last 3 years. Ran 9.61 in the 1/8th with the LT1 Has went 8.81 with a 2.35 60ft in current trim, needs traction !!

  3. #3
    Join Date
    Mar 2003
    Location
    San Marcos Texas
    Posts
    4,442
    LS1 Engine Installation Guide PN 88959384

    Lots of usefull information!

    3 wire engine coolant temperature sensor (one wire for the dash gauge, the other two for the PCM. PN 12551708).
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  4. #4
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    Awesome guys!! This is exactly the kind of stuff we need for the new site coming soon.

    thanks,

    allen

  5. #5
    Join Date
    Nov 2004
    Posts
    61
    Well I have quite a list:

    Front oxygen sensor for 2002 6L applications: 12565397

    Brake booster intake manifold fitting (needed if you got your 6L engine from a truck with hydroboost, and you have a vacuum booster): 12555831

    3-wire coolant temperature sensor connector: 12102748

    If you want to maintain the integrity of the EVAP system:
    EVAP vent valve: 15759044
    EVAP vent valve connector: 12101858
    Fuel tank pressure sensor connector: 88986451

    Fuel system stuff:
    Fuel pump module (note, will not fit in 88-95 tanks besides 4 door 95 Yukon/Tahoe): ACDelco MU146 (get it off ebay, much cheaper)
    Fuel pump connector: 12167154

    4L80e conversion parts:
    Dipstick: 15183801
    Dipstick tube: 15198439
    Dust cover to use with 4.8, 5.3, 6.0L engines: 15765623

    GMPP spark plug wires for LS1: 12495519

    3 piece "Vortec 6000" engine cover, without hole for EGR valve on passenger side: 15006417, 15006418, 15006419

    Mobil 1 oil filler cap: 12555685

    If you are using a stock wiring harness and want to be able to remove it, you will need the following connectors:
    C100 (engine to body harness): Delco PT1401
    C152 (engine to chassis harness): GM 15306199
    C153 (engine to 4WD harness): Delco PT420

    6L engine gaskets/seals:
    Front main seal- 12585673
    Rear main seal- 12585671
    Front cover gasket- 12574294
    Rear cover gasket- 12574293
    Top cover gasket- 12558178
    Oil pan gasket- 12558760
    Head gasket- 12589227
    Valve cover gasket (2)- 12560696
    Water pump gasket (2)- 12559271
    Oil pickup tube o-ring- 12557075

    6L engine internal parts:
    Main bearings- 1,2,4,5: 89017469 each, 3: 89017470 each
    Rod bearings-12493712 each
    Valve seals- intake: 12482063 (8) , exhaust: 12482062 (8)
    Valve keepers- 10166345 each
    1995 Chevy extended cab Z71 Silverado
    2002 6L LQ9 Engine, 2001 4L80e transmission

    http://www.pswired.com

  6. #6
    Join Date
    Feb 2005
    Location
    Central FL
    Posts
    109
    In tank fuel pump for LS1 / Vortec swap

    EP381 Delco# (E3270 Airtex #) = Flow = 50-60 GPH & PSI = 80-90

  7. #7
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    back to the top

    sorry about that,

    allen

  8. #8
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
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    Here are some PN's I had in a doc I found while cleaning up my computers.
    It's for a 4L80E swap.


    Flywheel: 12551367

    Spacer: 12563532

    Bolts: 12563533

    Dipstick Tube: 15198439

    Dust Cover: 15765623

    Cable Bracket: 15709993

    Tranny Cooler Line: 15765054

  9. #9
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689
    2002 LS1 Front Oxygen Sensors by Delphi available at OriellyAuto

    The O2 sensor end has a male connection. The factory LS1 harness has female O2 connectors.

    ES10009 RH passenger side
    ES10010 LH driver side
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  10. #10
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    Originally posted by RedHeartbeat@Dec 28 2005, 10:59 PM
    2002 LS1 Front Oxygen Sensors by Delphi available at OriellyAuto

    The O2 sensor end has a male connection. The factory LS1 harness has female O2 connectors.

    ES10009 RH passenger side
    ES10010 LH driver side
    Does anyone have a cross reference number from other makers of this GM PN-
    PN 25312203

    It's the O2's I use for the '02 Camaro pcms.

    thanks,

    allen

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